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WaterTight

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The standard ones bundled in a pack with the flush valve from the sheds/screwstation/toolfix don't perform well on gravity fed in my experience.

I've heard one of the 'pro' version has a restrictor you can remove to make it work better?

If so :-

1) Which valve is this?
2) Does it perform well or just a bit of an improvement?

I find these https://www.NoLinkingToThis/p/thomas-dudley-ltd-bottom-entry-fill-valve/7356f
work incredibly well on gravity with their restrictor removed but always good to have a second or third option for when stuff won't fit propers

Thanks
 
The Wirquin fill valve (brass tail version) is very good on gravity or mains pressure. Advantage is the float is encapsulated in an outer case, so won’t be affected by touching side of cistern. It comes with a one piece plastic combined filter and restrictor, which the instructions show to cut the restrictor off for gravity pressure or leave as is and push fully into tail.
 

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