[H20cleaning]

My carke pump has got slower at filling up my van, so just wondering if there is a filter in it that might need changing?

[alfie11]

no filters in them take the hose of and blow down it, you should be able to blow with little restriction

[Roger Oakley]

I use a sub-pump occasionally and they do get blocked, there is usually only 3 screws, undo those and remove, remove base plate, clear debris, BUT make sure you put the base plate back in the same position, then re assemble takes around 5 mins.

[H20cleaning]

Thanks for the feed back i will try this weekend thanks