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Old 11-01-2011, 09:32 PM   #1
lngrid
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Default Blocked toilet rim holes

Hi. I live in an apartment that's 30 years old. The toilet flushes slowly because of blocked rim holes, but the manager hasn't done anything about it. With the economy the way it is, the management company has bigger problems than my toilet. I saved all the letters I've been written as proof of their nonresponse and I'm willing to fix it myself.

Looking under the rim of the toilet, 17 of the 21 rim holes are blocked. I've tried to open them with a bent coat hanger but they seem to angle sharply toward the front of the bowl. I've read that you can pour muriatic acid down the overflow pipe to clear them, but would someone please explain clearly how to do that? Do I block all the holes with something to hold back the acid while it clears all the debris? How long do I let it sit? How much do I use?

Luckily this bathroom has both a window and a fan, so I can get good ventilation going.



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Old 11-01-2011, 11:06 PM   #2
havasu
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Before using muriatic acid, which is extremely caustic, I'd recommend using C-L-R, let it sit, scrub it, and them more C-L-R. I use it all the time to eliminate calcium build up in all the little holes on my shower sprayer, and it works great!



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Old 11-02-2011, 03:03 AM   #3
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But we're talking three decades -- 30 years -- worth of buildup here. This toilet was new when Apple first released Macintosh computers. John Lennon was still alive. No one had even dreamed of AIDS yet.

I don't mean to be rude, but we aren't talking about the buildup on the little holes in your showerhead, here.

In using the acid, I would use the same caution I use in the chemistry lab and also when I make soap, which I do using highly caustic lye: heavy rubber gloves, safety glasses, large shirt (no lab coat at home) for catching spatters, neutralizing solution within reach, windows open and fan on.

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Old 11-02-2011, 03:16 AM   #4
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All havasu is saying is that C-L-R may give you the same results as the acid with less of a chance of causing damage to the toilet or to you. Also keep in mind that there is a gasket between the tank and the bowl that may be compromised by the acid.

John

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Old 11-02-2011, 09:12 PM   #5
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OP,
We had the same problem with the upstairs commode because the Mrs insisted on using those blue tabs that make the water "pretty". Eventually the blue guck clogged those holes. I shut off the supply valve and flushed then filled the tank all the way up with hot water from the tub. Flushed again. Repeated this a few times. The hot water seemed to have dissolved whatever was clogging those holes. Turned supply back on. The problem has not recurred. The blue tabs aren't being used any more either.
FWIW
YMMV

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Old 11-02-2011, 09:56 PM   #6
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Quote:
Originally Posted by DFBonnett View Post
OP,
We had the same problem with the upstairs commode because the Mrs insisted on using those blue tabs that make the water "pretty". Eventually the blue guck clogged those holes. I shut off the supply valve and flushed then filled the tank all the way up with hot water from the tub. Flushed again. Repeated this a few times. The hot water seemed to have dissolved whatever was clogging those holes. Turned supply back on. The problem has not recurred. The blue tabs aren't being used any more either.
FWIW
YMMV
Good bye to the blue tabs. Those things have been a huge problem for may plumbers. You get that stuff on your hands and it stays with you for quite some time. Many of the toilet manufactures say the use of them will void there warranty. Hooray for the manufactures.

John
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Old 11-03-2011, 02:31 AM   #7
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Calcisolve down the overflow or the flush valve inlet will be safe and will disolve the gunk. Just got to make sure the water shuts off all the way to the tank and get as much out of the tank and toilet insides with a shop vac.



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