I bought a $4 Wal-Mart toilet flush valve assembly, imported by
"Waxman" from China. The installation went OK, except that the
tank-to-bowl gasket was 3/4" taller than the old one, requiring
shims. It's a Lamosa Sahara toilet from the early 70s. I'm
assuming that has nothing to do with the following.
The problem is that the flapper won't quite close at all the way
without a small push or weight. It uses a trapped air bubble to
stay open until the tank is cleared, but it seems too light to
overcome the lift when it gets horizontal near the bottom.
I want to know if anyone has tried drilling small holes on top
to allow air to escape from the "dome" of the flapper? It's a
fine balance down there. I am now using a brass nut as a weight
but I'd like a cleaner method.
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