Originally Posted by guzzimike
It was then that I had the bright idea to backflush the filter with petrol.
You would not believe the amount of crap that came out of that filter!
It took about 2 litres of petrol poured through it before it ran clean.
What did the pre-pump filter sock look like? I haven't worried about the canister filter because the sock has always been debris free. Now I'm thinking I should have a look anyway.