I’ve got an impressive amount of scale in the pipe of my shower drain. Trying vinegar but may need a bigger gun.

How much should I dilute muriatic acid (31% HCl) in order to make it safe for my pipes while still being effective at dissolving the scale?

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Posted by boudinman

Member since Nov 2019

6101 posts

Posted on 6/29/24 at 4:12 pm to TheDude854

Try CLR?

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Posted by mdomingue

Lafayette, LA

Member since Nov 2010

38336 posts

Posted on 6/29/24 at 6:23 pm to boudinman

quote:
Try CLR?

That is the next step IMO

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Posted by Big Jim Slade

Member since Oct 2016

5950 posts

Posted on 6/30/24 at 8:14 am to mdomingue

Same battle currently. CLR didn’t do much and neither did vinegar/baking soda. I think I either need a stronger chemical compound or a rooter service to clean out the drain which is narrow deep down.

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Posted by zippyputt

Member since Jul 2005

6528 posts

Posted on 6/30/24 at 8:25 am to TheDude854

CLR should eventually get it done. You may want to invest a couple hundred bucks in getting someone to run a camera through the pipes to make sure something else isn’t going on.

This post was edited on 6/30/24 at 8:27 am

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Posted by WB Davis

Member since May 2018

2327 posts

Posted on 6/30/24 at 12:17 pm to Big Jim Slade

quote:
I think I either need a stronger chemical compound or a rooter service to clean out the drain which is narrow deep down.

I'd find a plumber who can hydro-jet the drain with a steel-braided trap hose that has a small enough nozzle tip to twist through a tiled shower floor trap.

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Posted by boudinman

Member since Nov 2019

6101 posts

Posted on 6/30/24 at 4:13 pm to Big Jim Slade

Go with a plumber. Stronger chemicals may damage older pipes and fittings.

This post was edited on 6/30/24 at 4:25 pm

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Posted by Big Jim Slade

Member since Oct 2016