"I had problems with the old float valve in the cold water tank on top of the hot water cylinder. I had replaced one previously for the same problem. As the water entered it was causing the float to bob up and down in the rising water, which created a light "hammering" in the pipes. Read other reviews and took their advice. You obviously get what you pay for. This valve was slightly more expensive but seems to have cured the problems instantly. Time will tell. Good product and in stock at the local branch."
"I was disappointed to find that the end cap on this, which looks in the photo like brass, is just brass-coloured plastic, and broke in transit with a larger shipment. I think something was dropped on the float arm.
Screwfix were very good, and sent me a replacement the next day.
it is rather a budget valve and the Pegler is worth the extra."
"Internally, in essence it's the same as other makes - BUT instead of a soft black rubber diaphragm washer this one has a firmer white washer with a bonded-on white hard plastic cone. The tip of the cone fits into a larger than normal nozzle (ie not the standard white nozzle used for HP systems). So if there's any disturbance in the inlet as the valve is nearly closed - and there always is - then the cone vibrates in the nozzle (hard plastic against hard plastic) and everything they touch resonates also. Result - enough noise to wake folk. And yes - I did check that all components were properly seated and secured ! I've had to swap out (with more expensive but more conventional internals) both of the two I've installed & will be returning all my stock for a refund as I consider this a poor design that's not been properly road-tested."