diff --git a/.gitignore b/.gitignore
index 24547ee..4377796 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,7 +10,7 @@ __pycache__/
 .Python
 build/
 develop-eggs/
-# dist/
+dist/
 downloads/
 eggs/
 .eggs/
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
deleted file mode 100644
index ec661f6..0000000
--- a/.readthedocs.yaml
+++ /dev/null
@@ -1,32 +0,0 @@
-# .readthedocs.yaml
-# Read the Docs configuration file
-# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
-
-# Required
-version: 2
-
-# Set the OS, Python version and other tools you might need
-build:
-  os: ubuntu-22.04
-  tools:
-    python: "3.10"
-    # You can also specify other tool versions:
-    # nodejs: "19"
-    # rust: "1.64"
-    # golang: "1.19"
-
-# Build documentation in the "docs/" directory with Sphinx
-sphinx:
-  configuration: docs/conf.py
-
-# Optionally build your docs in additional formats such as PDF and ePub
-# formats:
-#    - pdf
-#    - epub
-
-# Optional but recommended, declare the Python requirements required
-# to build your documentation
-# See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
-python:
-    install:
-    - requirements: docs/requirements.txt
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 509a043..84623b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,4 +31,6 @@ Adding `.finalize()` method - clears up the directory. Especially useful for DA.
 #### 1.5.1
 - fix bug/implementation error with time indexing, docker image version 1.3.1
 #### 1.5.2
-- typo in bmi implementation: docker image 1.3.2
\ No newline at end of file
+- typo in bmi implementation: docker image 1.3.2
+#### 1.6.0
+  - now compatible with ewatercycle V2.1 `LumpedMakkinkForcing` which generates evaporation from era5/CMIP. 
\ No newline at end of file
diff --git a/dist/ewatercycle_hbv-1.4.1-py2.py3-none-any.whl b/dist/ewatercycle_hbv-1.4.1-py2.py3-none-any.whl
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diff --git a/dist/ewatercycle_hbv-1.5.0-py2.py3-none-any.whl b/dist/ewatercycle_hbv-1.5.0-py2.py3-none-any.whl
deleted file mode 100644
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deleted file mode 100644
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diff --git a/dist/ewatercycle_hbv-1.5.1-py2.py3-none-any.whl b/dist/ewatercycle_hbv-1.5.1-py2.py3-none-any.whl
deleted file mode 100644
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diff --git a/dist/ewatercycle_hbv-1.5.1.tar.gz b/dist/ewatercycle_hbv-1.5.1.tar.gz
deleted file mode 100644
index c2eca6d..0000000
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diff --git a/pyproject.toml b/pyproject.toml
index 160c121..06d7369 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ name = "ewatercycle-HBV"
 description = "Implementation of HBV for eWaterCycle"
 readme = "README.md"
 license = "Apache-2.0"
-version = "1.5.2"
+version = "1.6.0"
 authors = [
   { name = "David Haasnoot", email = "davidhaasnoot@gmail.com" },
 ]
diff --git a/src/ewatercycle_HBV/__init__.py b/src/ewatercycle_HBV/__init__.py
index ead0287..a1f60f7 100644
--- a/src/ewatercycle_HBV/__init__.py
+++ b/src/ewatercycle_HBV/__init__.py
@@ -1 +1 @@
-__version__ = "1.5.2"
+__version__ = "1.6.0"
diff --git a/src/ewatercycle_HBV/forcing.py b/src/ewatercycle_HBV/forcing.py
index fd20237..bca0204 100644
--- a/src/ewatercycle_HBV/forcing.py
+++ b/src/ewatercycle_HBV/forcing.py
@@ -103,7 +103,7 @@ def from_test_txt(self) -> xr.Dataset:
                 Dataset with forcing data.
         """
         if self.directory is None or self.camels_file is None:
-            raise ValueError("Directory or camels_file is not set")
+            self.file_not_found_error()
         fn = self.directory / self.camels_file
         forcing = np.loadtxt(fn, delimiter="	")
         names = ["year", "month", "day", "pr","Q", "pev"]
@@ -144,7 +144,7 @@ def from_camels_txt(self) -> xr.Dataset:
                 Dataset with forcing data.
         """
         if self.directory is None or self.camels_file is None:
-            raise ValueError("Directory or camels_file is not set")
+            self.file_not_found_error()
         fn = self.directory / self.camels_file
         data = {}
         with open(fn, 'r') as fin:
@@ -206,8 +206,9 @@ def from_camels_txt(self) -> xr.Dataset:
         return ds
 
     def from_external_source(self):
+        """Runs checks on externally provided forcing"""
         if None in [self.directory, self.pr, self.pev]:
-            raise ValueError("Directory or camels_file is not set")
+            self.file_not_found_error()
 
         # often same file
         if self.pr == self.pev:
@@ -228,7 +229,7 @@ def from_external_source(self):
             ds_pr = xr.open_dataset(self.directory / self.pr)
             ds_pev = xr.open_dataset(self.directory / self.pev)
             combined_data_vars = list(ds_pr.data_vars) + list(ds_pev.data_vars)
-            if not sum([param in combined_data_vars for param in REQUIRED_PARAMS]) == len(REQUIRED_PARAMS):
+            if sum([param in combined_data_vars for param in REQUIRED_PARAMS]) != len(REQUIRED_PARAMS):
                 raise UserWarning(f"Supplied NetCDF files must contain {REQUIRED_PARAMS} respectively")
 
             ds_pr, ds_name_pr = self.crop_ds(ds_pr, "external")
@@ -253,6 +254,9 @@ def crop_ds(self, ds: xr.Dataset, name: str):
 
         return ds, ds_name
 
+    def file_not_found_error(self):
+        raise ValueError("Directory, camels_file or pr & pev values is not set correctly")
+
 def calc_pet(s_rad, t_min, t_max, doy, alpha, elev, lat) -> np.ndarray:
     """Calculates Potential Evaporation using Priestly–Taylor PET estimate, callibrated with longterm P-T trends from the camels data set (alpha).
 
diff --git a/src/ewatercycle_HBV/model.py b/src/ewatercycle_HBV/model.py
index 892d9ea..ff0c697 100644
--- a/src/ewatercycle_HBV/model.py
+++ b/src/ewatercycle_HBV/model.py
@@ -1,12 +1,14 @@
 """eWaterCycle wrapper for the HBV model."""
 import json
-import os.path
+import xarray as xr
 import warnings
 from collections.abc import ItemsView
 from pathlib import Path
 from typing import Any, Type
 
-from ewatercycle.base.forcing import GenericLumpedForcing # or later Use custom forcing instead?
+from ewatercycle.forcing import LumpedMakkinkForcing
+from ewatercycle.forcing import GenericLumpedForcing
+
 from ewatercycle_HBV.forcing import HBVForcing # Use custom forcing instead
 from ewatercycle.base.model import ContainerizedModel, eWaterCycleModel
 from ewatercycle.container import ContainerImage
@@ -32,10 +34,9 @@
 class HBVMethods(eWaterCycleModel):
     """
     The eWatercycle HBV model.
-    
-
     """
-    forcing: HBVForcing  # The model requires forcing.
+
+    forcing: LumpedMakkinkForcing|HBVForcing|GenericLumpedForcing  # The model requires forcing.
     parameter_set: None  # The model has no parameter set.
 
     _config: dict = {
@@ -49,22 +50,52 @@ def _make_cfg_file(self, **kwargs) -> Path:
         """Write model configuration file."""
 
         # do some basic test to check on forcing
-        if self.forcing.test_data_bool:
-            self.forcing.from_test_txt()
-        elif self.forcing.camels_txt_defined():
-            self.forcing.from_camels_txt()
-        elif self.forcing.forcing_nc_defined():
-            self.forcing.from_external_source()
-        else:
-            raise UserWarning("Ensure either a txt file with camels data or an(/set of) xarrays is defined")
-
-        self._config["precipitation_file"] = str(
-            self.forcing.directory / self.forcing.pr
-        )
-
-        self._config["potential_evaporation_file"] = str(
-            self.forcing.directory / self.forcing.pev
-        )
+        if type(self.forcing).__name__ == 'HBVForcing':
+            if self.forcing.test_data_bool:
+                self.forcing.from_test_txt()
+            elif self.forcing.camels_txt_defined():
+                self.forcing.from_camels_txt()
+            elif self.forcing.forcing_nc_defined():
+                self.forcing.from_external_source()
+            else:
+                raise UserWarning("Ensure either a txt file with camels data or an(/set of) xarrays is defined")
+
+            self._config["precipitation_file"] = str(
+                self.forcing.directory / self.forcing.pr
+            )
+
+            self._config["potential_evaporation_file"] = str(
+                self.forcing.directory / self.forcing.pev
+            )
+
+        elif type(self.forcing).__name__ == 'GenericLumpedForcing':
+                raise UserWarning("Generic Lumped Forcing does not provide potential evaporation, which this model needs")
+
+        elif type(self.forcing).__name__ == 'LumpedMakkinkForcing':
+            ds = xr.open_dataset(self.forcing.directory / self.forcing.filenames['evspsblpot'])
+            attributes = ds['evspsblpot'].attrs
+            attributes['units'] = 'mm'
+            ds = ds.rename({'evspsblpot': 'pev'})
+            ds['pev'] = ds['pev'] * 86400
+            ds['pev'].attrs = attributes
+            temporary_pev_file =  self.forcing.directory / self.forcing.filenames['evspsblpot'].replace('evspsblpot', 'pev_mm')
+            ds.to_netcdf(temporary_pev_file)
+
+            ds = xr.open_dataset(self.forcing.directory / self.forcing.filenames['pr'])
+            attributes = ds['pr'].attrs
+            attributes['units'] = 'mm'
+            ds['pr'] = ds['pr'] * 86400
+            ds['pr'].attrs = attributes
+            temporary_pr_file =  self.forcing.directory / self.forcing.filenames['pr'].replace('pr', 'pr_mm')
+            ds.to_netcdf(temporary_pr_file)
+
+            self._config["precipitation_file"] = str(
+                temporary_pr_file
+            )
+            self._config["potential_evaporation_file"] = str(
+                temporary_pev_file
+            )
+
         ## possibly add later for snow?
         # self._config["temperature_file"] = str(
         #     self.forcing.directory / self.forcing.tas
@@ -160,15 +191,22 @@ def finalize(self) -> None:
         except FileNotFoundError:
             warnings.warn(message=f'Config folder not found at {self._cfg_dir.rmdir()}',category=UserWarning)
 
-
-        # NetCDF files created are timestamped and running them a lot creates many files, remove these
-        if self.forcing.camels_txt_defined() or self.forcing.test_data_bool:
-            for file in ["potential_evaporation_file", "precipitation_file"]:
-                path = self.forcing.directory / self._config[file]
-                if path.is_file(): # often both with be the same, e.g. with camels data.
-                    path.unlink()
-                else:
-                    pass
+        if type(self.forcing).__name__ == 'HBVForcing':
+            # NetCDF files created are timestamped and running them a lot creates many files, remove these
+            if self.forcing.camels_txt_defined() or self.forcing.test_data_bool:
+                self.unlink()
+
+        elif type(self.forcing).__name__ == 'LumpedMakkinkForcing':
+            # we created a temporary file so let's unlink that
+            self.unlink()
+
+    def unlink(self):
+        for file in ["potential_evaporation_file", "precipitation_file"]:
+            path = self.forcing.directory / self._config[file]
+            if path.is_file():  # often both with be the same, e.g. with camels data.
+                path.unlink()
+            else:
+                pass
 
 class HBV(ContainerizedModel, HBVMethods):
     """The HBV eWaterCycle model, with the Container Registry docker image."""