diff --git a/applications/prompt-proto-service-hsc-gpu/README.md b/applications/prompt-proto-service-hsc-gpu/README.md
index 8d393c1e28..2abb087ee8 100644
--- a/applications/prompt-proto-service-hsc-gpu/README.md
+++ b/applications/prompt-proto-service-hsc-gpu/README.md
@@ -19,7 +19,6 @@ Prompt Proto Service is an event driven service for processing camera images. Th
 | prompt-proto-service.alerts.username | string | `"kafka-admin"` | Username for sending alerts to the alert stream |
 | prompt-proto-service.apdb.config | string | None, must be set | URL to a serialized APDB configuration, or the "label:" prefix followed by the indexed name of such a config. |
 | prompt-proto-service.cache.baseSize | int | `3` | The default number of datasets of each type to keep. The pipeline only needs one of most dataset types (one bias, one flat, etc.), so this is roughly the number of visits that fit in the cache. |
-| prompt-proto-service.cache.maxFilters | int | `20` | The maximum number of datasets of a given type the service might load if the filter is unknown. Should be greater than or equal to the number of filters that have e.g. flats or transmission curves. |
 | prompt-proto-service.cache.patchesPerImage | int | `4` | A factor by which to multiply `baseSize` for templates and other patch-based datasets. |
 | prompt-proto-service.cache.refcatsPerImage | int | `4` | A factor by which to multiply `baseSize` for refcat datasets. |
 | prompt-proto-service.containerConcurrency | int | `1` | The number of Knative requests that can be handled simultaneously by one container |
diff --git a/applications/prompt-proto-service-hsc-gpu/values.yaml b/applications/prompt-proto-service-hsc-gpu/values.yaml
index cc8ab54927..932988f68f 100644
--- a/applications/prompt-proto-service-hsc-gpu/values.yaml
+++ b/applications/prompt-proto-service-hsc-gpu/values.yaml
@@ -67,9 +67,6 @@ prompt-proto-service:
     refcatsPerImage: 4
     # -- A factor by which to multiply `baseSize` for templates and other patch-based datasets.
     patchesPerImage: 4
-    # -- The maximum number of datasets of a given type the service might load if the filter is unknown.
-    # Should be greater than or equal to the number of filters that have e.g. flats or transmission curves.
-    maxFilters: 20
 
   s3:
     # -- Bucket containing the incoming raw images
diff --git a/applications/prompt-proto-service-hsc/README.md b/applications/prompt-proto-service-hsc/README.md
index 3f6af2f7fb..7867a9a57c 100644
--- a/applications/prompt-proto-service-hsc/README.md
+++ b/applications/prompt-proto-service-hsc/README.md
@@ -19,7 +19,6 @@ Prompt Proto Service is an event driven service for processing camera images. Th
 | prompt-proto-service.alerts.username | string | `"kafka-admin"` | Username for sending alerts to the alert stream |
 | prompt-proto-service.apdb.config | string | None, must be set | URL to a serialized APDB configuration, or the "label:" prefix followed by the indexed name of such a config. |
 | prompt-proto-service.cache.baseSize | int | `3` | The default number of datasets of each type to keep. The pipeline only needs one of most dataset types (one bias, one flat, etc.), so this is roughly the number of visits that fit in the cache. |
-| prompt-proto-service.cache.maxFilters | int | `20` | The maximum number of datasets of a given type the service might load if the filter is unknown. Should be greater than or equal to the number of filters that have e.g. flats or transmission curves. |
 | prompt-proto-service.cache.patchesPerImage | int | `4` | A factor by which to multiply `baseSize` for templates and other patch-based datasets. |
 | prompt-proto-service.cache.refcatsPerImage | int | `4` | A factor by which to multiply `baseSize` for refcat datasets. |
 | prompt-proto-service.containerConcurrency | int | `1` | The number of Knative requests that can be handled simultaneously by one container |
diff --git a/applications/prompt-proto-service-hsc/values.yaml b/applications/prompt-proto-service-hsc/values.yaml
index 906684d472..4b9f273049 100644
--- a/applications/prompt-proto-service-hsc/values.yaml
+++ b/applications/prompt-proto-service-hsc/values.yaml
@@ -67,9 +67,6 @@ prompt-proto-service:
     refcatsPerImage: 4
     # -- A factor by which to multiply `baseSize` for templates and other patch-based datasets.
     patchesPerImage: 4
-    # -- The maximum number of datasets of a given type the service might load if the filter is unknown.
-    # Should be greater than or equal to the number of filters that have e.g. flats or transmission curves.
-    maxFilters: 20
 
   s3:
     # -- Bucket containing the incoming raw images
diff --git a/applications/prompt-proto-service-latiss/README.md b/applications/prompt-proto-service-latiss/README.md
index 338d44300f..38604c53a1 100644
--- a/applications/prompt-proto-service-latiss/README.md
+++ b/applications/prompt-proto-service-latiss/README.md
@@ -19,7 +19,6 @@ Prompt Proto Service is an event driven service for processing camera images. Th
 | prompt-proto-service.alerts.username | string | `"kafka-admin"` | Username for sending alerts to the alert stream |
 | prompt-proto-service.apdb.config | string | None, must be set | URL to a serialized APDB configuration, or the "label:" prefix followed by the indexed name of such a config. |
 | prompt-proto-service.cache.baseSize | int | `3` | The default number of datasets of each type to keep. The pipeline only needs one of most dataset types (one bias, one flat, etc.), so this is roughly the number of visits that fit in the cache. |
-| prompt-proto-service.cache.maxFilters | int | `10` | The maximum number of datasets of a given type the service might load if the filter is unknown. Should be greater than or equal to the number of filters that have e.g. flats or transmission curves. |
 | prompt-proto-service.cache.patchesPerImage | int | `6` | A factor by which to multiply `baseSize` for templates and other patch-based datasets. |
 | prompt-proto-service.cache.refcatsPerImage | int | `4` | A factor by which to multiply `baseSize` for refcat datasets. |
 | prompt-proto-service.containerConcurrency | int | `1` | The number of Knative requests that can be handled simultaneously by one container |
diff --git a/applications/prompt-proto-service-latiss/values.yaml b/applications/prompt-proto-service-latiss/values.yaml
index 0c4a94f046..f99f738cf6 100644
--- a/applications/prompt-proto-service-latiss/values.yaml
+++ b/applications/prompt-proto-service-latiss/values.yaml
@@ -68,9 +68,6 @@ prompt-proto-service:
     refcatsPerImage: 4
     # -- A factor by which to multiply `baseSize` for templates and other patch-based datasets.
     patchesPerImage: 6
-    # -- The maximum number of datasets of a given type the service might load if the filter is unknown.
-    # Should be greater than or equal to the number of filters that have e.g. flats or transmission curves.
-    maxFilters: 10
 
   s3:
     # -- Bucket containing the incoming raw images
diff --git a/applications/prompt-proto-service-lsstcam/README.md b/applications/prompt-proto-service-lsstcam/README.md
index 9ad358da9f..4ea15c5734 100644
--- a/applications/prompt-proto-service-lsstcam/README.md
+++ b/applications/prompt-proto-service-lsstcam/README.md
@@ -19,7 +19,6 @@ Prompt Proto Service is an event driven service for processing camera images. Th
 | prompt-proto-service.alerts.username | string | `"kafka-admin"` | Username for sending alerts to the alert stream |
 | prompt-proto-service.apdb.config | string | None, must be set | URL to a serialized APDB configuration, or the "label:" prefix followed by the indexed name of such a config. |
 | prompt-proto-service.cache.baseSize | int | `3` | The default number of datasets of each type to keep. The pipeline only needs one of most dataset types (one bias, one flat, etc.), so this is roughly the number of visits that fit in the cache. |
-| prompt-proto-service.cache.maxFilters | int | `20` | The maximum number of datasets of a given type the service might load if the filter is unknown. Should be greater than or equal to the number of filters that have e.g. flats or transmission curves. |
 | prompt-proto-service.cache.patchesPerImage | int | `4` | A factor by which to multiply `baseSize` for templates and other patch-based datasets. |
 | prompt-proto-service.cache.refcatsPerImage | int | `4` | A factor by which to multiply `baseSize` for refcat datasets. |
 | prompt-proto-service.containerConcurrency | int | `1` | The number of Knative requests that can be handled simultaneously by one container |
diff --git a/applications/prompt-proto-service-lsstcam/values.yaml b/applications/prompt-proto-service-lsstcam/values.yaml
index ddddda51fc..7ef338d749 100644
--- a/applications/prompt-proto-service-lsstcam/values.yaml
+++ b/applications/prompt-proto-service-lsstcam/values.yaml
@@ -67,9 +67,6 @@ prompt-proto-service:
     refcatsPerImage: 4
     # -- A factor by which to multiply `baseSize` for templates and other patch-based datasets.
     patchesPerImage: 4
-    # -- The maximum number of datasets of a given type the service might load if the filter is unknown.
-    # Should be greater than or equal to the number of filters that have e.g. flats or transmission curves.
-    maxFilters: 20
 
   s3:
     # -- Bucket containing the incoming raw images
diff --git a/applications/prompt-proto-service-lsstcomcam/README.md b/applications/prompt-proto-service-lsstcomcam/README.md
index bca983e74b..e863496c44 100644
--- a/applications/prompt-proto-service-lsstcomcam/README.md
+++ b/applications/prompt-proto-service-lsstcomcam/README.md
@@ -19,7 +19,6 @@ Prompt Proto Service is an event driven service for processing camera images. Th
 | prompt-proto-service.alerts.username | string | `"kafka-admin"` | Username for sending alerts to the alert stream |
 | prompt-proto-service.apdb.config | string | None, must be set | URL to a serialized APDB configuration, or the "label:" prefix followed by the indexed name of such a config. |
 | prompt-proto-service.cache.baseSize | int | `3` | The default number of datasets of each type to keep. The pipeline only needs one of most dataset types (one bias, one flat, etc.), so this is roughly the number of visits that fit in the cache. |
-| prompt-proto-service.cache.maxFilters | int | `20` | The maximum number of datasets of a given type the service might load if the filter is unknown. Should be greater than or equal to the number of filters that have e.g. flats or transmission curves. |
 | prompt-proto-service.cache.patchesPerImage | int | `16` | A factor by which to multiply `baseSize` for templates and other patch-based datasets. |
 | prompt-proto-service.cache.refcatsPerImage | int | `6` | A factor by which to multiply `baseSize` for refcat datasets. |
 | prompt-proto-service.containerConcurrency | int | `1` | The number of Knative requests that can be handled simultaneously by one container |
diff --git a/applications/prompt-proto-service-lsstcomcam/values.yaml b/applications/prompt-proto-service-lsstcomcam/values.yaml
index db046650d4..50f83669ba 100644
--- a/applications/prompt-proto-service-lsstcomcam/values.yaml
+++ b/applications/prompt-proto-service-lsstcomcam/values.yaml
@@ -70,9 +70,6 @@ prompt-proto-service:
     refcatsPerImage: 6
     # -- A factor by which to multiply `baseSize` for templates and other patch-based datasets.
     patchesPerImage: 16
-    # -- The maximum number of datasets of a given type the service might load if the filter is unknown.
-    # Should be greater than or equal to the number of filters that have e.g. flats or transmission curves.
-    maxFilters: 20
 
   s3:
     # -- Bucket containing the incoming raw images
diff --git a/applications/prompt-proto-service-lsstcomcamsim/README.md b/applications/prompt-proto-service-lsstcomcamsim/README.md
index 9c1fa3e437..1341b4219f 100644
--- a/applications/prompt-proto-service-lsstcomcamsim/README.md
+++ b/applications/prompt-proto-service-lsstcomcamsim/README.md
@@ -19,7 +19,6 @@ Prompt Proto Service is an event driven service for processing camera images. Th
 | prompt-proto-service.alerts.username | string | `"kafka-admin"` | Username for sending alerts to the alert stream |
 | prompt-proto-service.apdb.config | string | None, must be set | URL to a serialized APDB configuration, or the "label:" prefix followed by the indexed name of such a config. |
 | prompt-proto-service.cache.baseSize | int | `3` | The default number of datasets of each type to keep. The pipeline only needs one of most dataset types (one bias, one flat, etc.), so this is roughly the number of visits that fit in the cache. |
-| prompt-proto-service.cache.maxFilters | int | `3` | The maximum number of datasets of a given type the service might load if the filter is unknown. Should be greater than or equal to the number of filters that have e.g. flats or transmission curves. |
 | prompt-proto-service.cache.patchesPerImage | int | `16` | A factor by which to multiply `baseSize` for templates and other patch-based datasets. |
 | prompt-proto-service.cache.refcatsPerImage | int | `6` | A factor by which to multiply `baseSize` for refcat datasets. |
 | prompt-proto-service.containerConcurrency | int | `1` | The number of Knative requests that can be handled simultaneously by one container |
diff --git a/applications/prompt-proto-service-lsstcomcamsim/values.yaml b/applications/prompt-proto-service-lsstcomcamsim/values.yaml
index ea2846b5a1..abe1dcb100 100644
--- a/applications/prompt-proto-service-lsstcomcamsim/values.yaml
+++ b/applications/prompt-proto-service-lsstcomcamsim/values.yaml
@@ -70,9 +70,6 @@ prompt-proto-service:
     refcatsPerImage: 6
     # -- A factor by which to multiply `baseSize` for templates and other patch-based datasets.
     patchesPerImage: 16
-    # -- The maximum number of datasets of a given type the service might load if the filter is unknown.
-    # Should be greater than or equal to the number of filters that have e.g. flats or transmission curves.
-    maxFilters: 3
 
   s3:
     # -- Bucket containing the incoming raw images
diff --git a/charts/prompt-proto-service/README.md b/charts/prompt-proto-service/README.md
index f2d8e7f96d..7e42ab08a7 100644
--- a/charts/prompt-proto-service/README.md
+++ b/charts/prompt-proto-service/README.md
@@ -19,7 +19,6 @@ Event-driven processing of camera images
 | alerts.username | string | `"kafka-admin"` | Username for sending alerts to the alert stream |
 | apdb.config | string | None, must be set | URL to a serialized APDB configuration, or the "label:" prefix followed by the indexed name of such a config. |
 | cache.baseSize | int | `3` | The default number of datasets of each type to keep. The pipeline only needs one of most dataset types (one bias, one flat, etc.), so this is roughly the number of visits that fit in the cache. |
-| cache.maxFilters | int | `20` | The maximum number of datasets of a given type the service might load if the filter is unknown. Should be greater than or equal to the number of filters that have e.g. flats or transmission curves. |
 | cache.patchesPerImage | int | `4` | A factor by which to multiply `baseSize` for templates and other patch-based datasets. |
 | cache.refcatsPerImage | int | `4` | A factor by which to multiply `baseSize` for refcat datasets. |
 | containerConcurrency | int | `1` | The number of Knative requests that can be handled simultaneously by one container |
diff --git a/charts/prompt-proto-service/templates/prompt-proto-service.yaml b/charts/prompt-proto-service/templates/prompt-proto-service.yaml
index ac77260360..97fca9abb3 100644
--- a/charts/prompt-proto-service/templates/prompt-proto-service.yaml
+++ b/charts/prompt-proto-service/templates/prompt-proto-service.yaml
@@ -119,8 +119,6 @@ spec:
           value: {{ .Values.cache.refcatsPerImage | toString | quote }}
         - name: PATCHES_PER_IMAGE
           value: {{ .Values.cache.patchesPerImage | toString | quote }}
-        - name: FILTERS_WITH_CALIBS
-          value: {{ .Values.cache.maxFilters | toString | quote }}
         - name: DEBUG_CACHE_CALIBS
           value: {{ if .Values.debug.cacheCalibs }}'1'{{ else }}'0'{{ end }}
         - name: DEBUG_EXPORT_OUTPUTS
diff --git a/charts/prompt-proto-service/values.yaml b/charts/prompt-proto-service/values.yaml
index 3e6bf9a2cf..378e0968cf 100644
--- a/charts/prompt-proto-service/values.yaml
+++ b/charts/prompt-proto-service/values.yaml
@@ -69,9 +69,6 @@ cache:
   refcatsPerImage: 4
   # -- A factor by which to multiply `baseSize` for templates and other patch-based datasets.
   patchesPerImage: 4
-  # -- The maximum number of datasets of a given type the service might load if the filter is unknown.
-  # Should be greater than or equal to the number of filters that have e.g. flats or transmission curves.
-  maxFilters: 20
 
 s3:
   # -- Bucket containing the incoming raw images