[d s windowcleaning]

how often would you clean out a strainer ?
I cleaned mine out yesterday and couldnt belive the build up inside after only 4 months .
im 100% certain if i didnt have the strainer before my pump the pump would be well broken by now .
how do trolley and backpack users go on without a strainer , im sure the build up of slime will be happening in the pumps .

[andyM]

Ive got an inline pump strainer, think it cost about £10 or so. I check it about once a month, but well worth the money in my opinion.