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Question DetailsAsked on 1/5/2015

my toilet has lost flushing power.

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1 Answer


If it is electric or power-flush type (no tank), call a plumber.

If a normal tank type, make sure the tank is filling all the way (almost to the top of the overflow tube, and near to the FILL line embossed in the inside back wall of the tank itself) - if not, then you probably have to adjust the float so the water fills to correct level - lots of blogs and Youtube videos on how to do that on the web.

If tank is full, but flowing out into the bowl slowly when flushing, check the flapper valve in the bottom (usually attached to flush handle with a chain) is opening all the way, and staying open till the tank is near empty.

If tank is full and water is coming into the bowl fine, but exiting slow (meaning water level in bowl is higher than normal when you flush - nearing the rim when you flush, or at least near to the bottom edge of the rim), then you have something blocking the toilet siphon (the gooseneck passage in the toilet base between the outlet hole from the bowl and the mounting flange in the floor), or you have a partial blockage in the sewer pipe. Most likely the former, especially if this is not the lowest drain in the house and you are not getting backup into lower elevation drains or tub/shower. Solution may be pouring several buckets of full hot water from the tub/shower with a bit of liquid soap in it down the toilet (if it is draining down somewhat and not just standing full). or using a plunger to dislodge whatever is causing the slow draining.

For professional attention if you are not up to DIY'ing this, a Plumber - typically about $75-150 except more in a few very high cost urban areas - $125 seems to be a normal charge in much of the country. May be more by maybe $25-75 labor and up to maybe $20-50 parts if he has to remove toilet from the flange, or has to replace the operating parts in the tank.

Answered 5 years ago by LCD

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