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Old 21-02-2018, 06:24   #1
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Toilet disinfectant effect on calcification of pipes

I just recently put some duck Toilet disinfectant into the bowl on my toilet and I was wondering if anyone has ever studied whether the disinfectant has any effect on the calcification that occurs in the pipes on the head. I am using one of those disinfectant that actually sticks to the bowl. It seems very strong and I wonder if the chemicals in them would stop the calculation. I donít know? Does anyone know someone that could investigate this?
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Old 21-02-2018, 06:54   #2
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Toilet disinfectant effect on calcification of pipes

Nothing works better than hydrochloric acid (available at Home Depot or pool supply) straight out of the jug. Go someplace legal, open the holding tank dump valve, pour a cup or so of HCL. around the rim, back away until the smoke stops, flush and repeat. Be sure the windows are open.

Do again until a quart or so is flushed and the smoke stops.

Flush 1/2 cup salad oil.

Result: no more smell, no clogged pipes, and potentially need to replace joker valve.

Do this twice a year with new valve and pump gasket once a year.

No problem.
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Old 21-02-2018, 06:58   #3
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Re: Toilet disinfectant effect on calcification of pipes

I doubt whether it will make much difference. Folks have tried putting a piece of calcification in vinegar overnight and been disappointed with the result despite lots of folks saying pour it down the loo.

The only thing that is really going to work is lots of flushing and the lack of probably one of the reasons so many people have problems. If the waste pipe is 12 feet long and the pump action 6 inches then assuming the pump diameter is similar to the hose diameter then you will need at least 24 pumps to empty the hose. I do it but my wife doesn't.

having said that I do put a squirt of the green Duck stuff in the bowl when leaving the boat for more than a couple of days so the loo smells nice on return.
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Old 21-02-2018, 08:25   #4
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Re: Toilet disinfectant effect on calcification of pipes

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I do put a squirt of the green Duck stuff in the bowl when leaving the boat for more than a couple of days so the loo smells nice on return.
Pete, any negatives effects on good ole' Joker? Wifey was using SnoBol the other day and I cautioned her that if she burnt Joker up SHE had to replace him.
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Old 21-02-2018, 08:55   #5
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Try Soda Bi-Carbonate..
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Old 21-02-2018, 09:02   #6
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Re: Toilet disinfectant effect on calcification of pipes

i would be more concerned with the effect of the chemicals on the bronze fittings.......
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Old 21-02-2018, 10:08   #7
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Re: Toilet disinfectant effect on calcification of pipes

PVC is permanent and NEVER smells.

And, yes, it will stand up to more abuse than you can willingly give it; ours survived our wreck with 3-5000 impacts at a 60į heel on the side with the PVC, in 8-10' surf over 3 days.

AND...

From Peggie Hall (Princess of poop, Head Mistress), you'll also never have scale (nor smell, for that matter) if you:

Flush continuously while inserting 'product of eating' as well as per square of TP (which will assure that any urine products are rinsed, leading to no scale buildup, even in salt water flushing),

Followed by however many (calculate) strokes it takes to move whatever is in the pipe past the anti-siphon valve (downhill all the way after that, which will bring the water level in the pipe to the outside water level, leaving a bit of air at the top),

Followed by the same number of dry strokes, which, if your anti-siphon valve works,

Leaves you with a dry stack.

I've had occasion to service my Y valve on occasion (new depth sounder under it, broken and replaced in another) and after 11 years of relatively constant use, have still found the pipe at the Y empty of scale, with only the slightest darkening of the bottom (no material).

Here's a pic of that installation; the white pipe in the lower left is what connects to the new Y:


Pictures: Flying Pig Refit 2011-2012/Fishfinder and SSB Redo

Here's the entire rebuild with the new Y valve some years later, with a better pic of the PVC end (photo ending in 91):

Pictures: Flying Pig Shakedown 2013-2014/Y-Valve and Hose

And a closeup of that PVC end:

As to head smell...

First, determine where the smell's coming from. Even expensive hose will eventually pass odor, but if it's new, it shouldn't smell. Determine hose as the source by taking a warm damp rag and wrapping it around the suspect area. Wait a minute or two and then give it a sniff. If there is the slightest odor it's the hose, otherwise keep looking.

I can't do anything about vents to holding tanks; see the link to Peggie's controlling boat odors for that.

However, PVC will solve everything else. It's a bit fiddly (the reason they use hose rather than PVC is that it's labor intensive to plot out the twists and turns needed vs just running the hose, particularly in the construction phase where lots of stuff may not yet be in the way.

My apologies for all the other stuff going on but here's the link to my installation of the forward head's pipe (the one you see in the other pix)

Pictures: Flying Pig Early Refit + Projects/Early_Major_Alterations_Work/04-05

Dang. That just shows the pieces. More here:

Pictures: Flying Pig Early Refit + Projects/Early_Major_Alterations_Work/04-26&27-05
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Old 21-02-2018, 10:10   #8
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Re: Toilet disinfectant effect on calcification of pipes

I use CLR, and fresh water. Using it for five years on a 20 ft run to the tank.
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Old 21-02-2018, 10:25   #9
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Re: Toilet disinfectant effect on calcification of pipes

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I doubt whether it will make much difference. Folks have tried putting a piece of calcification in vinegar overnight and been disappointed with the result despite lots of folks saying pour it down the loo.
I have to disagree with this.. Yes I have read posts about the calcium not being disolved..

However just a few weeks ago our toilet plugged solid. We disconnected the hose at the Y valve and ran a thin peice of PVC line down it. We could clearly see the hose was massively calcified and feel the blockage about 3ft in (broken calcium crystal blocked it). We poured muriatic acid down the hose and immediately the calcium started to disolve (and bubble over). We replenished the muriatic every hour for 3 hours. It not only disolved the blockage, but all the rest of the crystals on the pipe (about 1/4" thick).

I'm not sure why other people have "SUPER" calcium that they cannot disolve. Of course we used muriatic instead of vinegar, but ours disolved readily.

We did replace the hose once we got to a location where we could purchase it. Once the crystals were disolved, it became VERY obvious the hose was permeated and very odiferious.
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Old 21-02-2018, 10:35   #10
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Re: Toilet disinfectant effect on calcification of pipes

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I have to disagree with this.. Yes I have read posts about the calcium not being disolved..

However just a few weeks ago our toilet plugged solid. We disconnected the hose at the Y valve and ran a thin peice of PVC line down it. We could clearly see the hose was massively calcified and feel the blockage about 3ft in (broken calcium crystal blocked it). We poured muriatic acid down the hose and immediately the calcium started to disolve (and bubble over). We replenished the muriatic every hour for 3 hours. It not only disolved the blockage, but all the rest of the crystals on the pipe (about 1/4" thick).

I'm not sure why other people have "SUPER" calcium that they cannot disolve. Of course we used muriatic instead of vinegar, but ours disolved readily.

We did replace the hose once we got to a location where we could purchase it. Once the crystals were disolved, it became VERY obvious the hose was permeated and very odiferious.
Vinegar is a very weak acid; muriatic will dissolve cement and etch rocks. It will also damage (maybe others but this is the only one I know for sure) Raritan PHII bases and pumps; for some reason that plastic doesn't do well with it.

It's also very environment-unfriendly; use Barnacle Buster instead to get rid of scale and calcification, including on your engine and refrigeration or AC water lines' critters.

The smell will never be there again if you replace the hose with PVC, but calcification comes down to either fresh water or LOTS of flushing (see above for evidence)...
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Old 21-02-2018, 10:51   #11
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Re: Toilet disinfectant effect on calcification of pipes

I have tried regular vinegar and it seemed to have no effect on calcium. When I finally pulled the hoses they had a solid 3/8" of calcium all the way around the interior of the hose. Waste of time. And who can carry many gallons of vinegar around cruising anyway? What are you going to have, a 30-50 gallon vinegar tank?
We used to use Pine Sol in the toilet to control odors. Not sure if it effected the interior rubber fittings etc or not.
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Old 21-02-2018, 10:57   #12
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Re: Toilet disinfectant effect on calcification of pipes

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Vinegar is a very weak acid; muriatic will dissolve cement and etch rocks. It will also damage (maybe others but this is the only one I know for sure) Raritan PHII bases and pumps; for some reason that plastic doesn't do well with it.

It's also very environment-unfriendly; use Barnacle Buster instead to get rid of scale and calcification, including on your engine and refrigeration or AC water lines' critters.

The smell will never be there again if you replace the hose with PVC, but calcification comes down to either fresh water or LOTS of flushing (see above for evidence)...
I will agree to disagree.. Muriatic or Phosphoric acid (main component of barnacle buster) are pretty much equal once used up in an alkaline reaction. Technically, your urine is worse for the environment than either.

As to PVC.. Come on over and see if you could run PVC on our boat. I would hand you a cool $100 if you could. Just not possible in the space we have (maybe with 45 elbows and end joints). Plus, what do you do about the inlet line? Believe it or not, inlet lines will also permiate and stink. Ours stunk like mad when we bought the boat (confirmed with the hot rag test). Replaced that line and all the stink went away.

As to the flushing.. We had done the calculation and flush twice the required pumps. In 2 years of full time living aboard, the hoses calcified (however there are 3 kids aboard that may be cheating). Frankly I will just change the hoses every 24 months.
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Old 21-02-2018, 11:04   #13
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I will agree to disagree.. Muriatic or Phosphoric acid (main component of barnacle buster) are pretty much equal once used up in an alkaline reaction. Technically, your urine is worse for the environment than either.
So that's the real reason sea waters undrinkable.. not the salt.. its all that fish, dolphin, whale and bird pee..
And.. I'm not mentioning poop.
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Old 21-02-2018, 11:18   #14
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Re: Toilet disinfectant effect on calcification of pipes

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So that's the real reason sea waters undrinkable.. not the salt.. its all that fish, dolphin, whale and bird pee..
And.. I'm not mentioning poop.
Phil I think you're still pooped! Not me, I keep it all soaked in plenty Tanqueray
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Old 21-02-2018, 11:20   #15
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Re: Toilet disinfectant effect on calcification of pipes

My boat's head plumbing blocked up soon after I bought the boat. A lot resisitence in the head pump and very little liquid passing through. Went to good old Costco and bought a 2 gallon pack of white vinegar. Dumped a couple of cups in the head and pumped it a few times and let it sit. Did that a few times over a couple of days and the back pressure decreased with each application of bleah until it was back to normal. Flush a bit of bleach through the head regularly and it's been fine ever since.

Unless your head cleaner is acidic, it won't have any effect on the calcium build up in the pipes.
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