I've had the above filter (large) running for coming up to three years. Excellent piece of kit . Super filtration with good readings and excellent clarity.

Over the last three years I've cleaned it 2-3 times a year ,normally before winter close down , after winter close down and the odd clean in the summer.

Always just jet washed the screens and all around the drum .

This last two weeks the screens have been blocking within 48 hours, sometimes 24. Quite high blanket weed but not this level.

We are in a very hard water area , North London and guess its scaled up on the drums.

Any particular cleaner to use and best place to buy?

TIA

Sent from my SM-A516B using Tapatalk