non siphonic modern washer reliant flushes are a massive problem
Certainly cannot disagree that syphons are and have been as relative today as they were when invented, quite happily to swap a new syphon with a old syphon. Far superior, can't agree there, certainly can be more efficient with water wastage but with the more modern, contemporary cistern shapes, slim fits, corner/cloakroom units etc then the classic syphon simply won't fit, it's really just horses for courses.
THEY ARE A MASSIVE PROBLEM, they waste huge amounts of water, they are fallible as they rely on a washer seal that IS gonna perish, they also get stuck in the up position sometimes for days, wasting 1000s of litres of water.... not to mention all the van miles and wasted plastic, customers taking afternoon off etc etc.. and having to remove cistern to replace them if they've stopped making that model, or you cant source it, its a disaster..but i understand why they came about, and yes the old flap in the siphonics was also a big problem, having to remove cistern to change it !! maddening ( horray for the changeable dudly)..when you say they're a problem, how do you mean? Most drop valves are a really easy twist off, then pop a new washer on and away you go. No problem there. That and £ for £ - flush valves are really really cheap and last such a long time that by the time they do pass it doesn't really owe anyone anything.
THEY ARE A MASSIVE PROBLEM
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