Help! Horrible smell from freshwater tank

[JimS123]

The pool shock we use is 12.5% Sodium Hypochlorite. Its usually quite fresh and goes along way. Grocery store laundry bleach is chemically the same, though only about 7.5%. Since it sits on the shelves a long time its not as effective pound for pound.

This same chemical is what Municipal Water Authorities use to treat your drinking water, though at this point its more like parts per million rather than %. The factory I used to work in discharged literally thousands of gallons of this stuff (in process cooling water) each day into our local river, also greatly diluted.

The current SDS naturally lists environmental and personal precautions, as it should. Obviously, you shouldn't drink the stuff straight, nor discharge thousands of gallons of the undiluted material.

Rv and marine plumbing is mostly plastic and will easily flush. There should be NO contact with the internal parts of the heater since its harder to flush. Also, contact with any metal parts could be CATASTROPHIC and should be avoided. After draining and then flushing with clear water, then open the bypass and flush the entire system.

 

[MTboatguy]

The pool shock we use is 12.5% Sodium Hypochlorite. Its usually quite fresh and goes along way. Grocery store laundry bleach is chemically the same, though only about 7.5%. Since it sits on the shelves a long time its not as effective pound for pound.

This same chemical is what Municipal Water Authorities use to treat your drinking water, though at this point its more like parts per million rather than %. The factory I used to work in discharged literally thousands of gallons of this stuff (in process cooling water) each day into our local river, also greatly diluted.

The current SDS naturally lists environmental and personal precautions, as it should. Obviously, you shouldn't drink the stuff straight, nor discharge thousands of gallons of the undiluted material.

Rv and marine plumbing is mostly plastic and will easily flush. There should be NO contact with the internal parts of the heater since its harder to flush. Also, contact with any metal parts could be CATASTROPHIC and should be avoided. After draining and then flushing with clear water, then open the bypass and flush the entire system.

Jim,

I would have thought the stuff you guys use would be much higher concentrate, the stuff I use they suggested for my hot tube has Sodium Dichloro-S-Triazinetrione at 63.05% with available Chlorine at 39%

https://images.homedepot-static.com/catalog/pdfImages/16/161ed121-08c4-4782-8d78-ac71b9b5c5ad.pdf

I know a little goes a long ways.

I just use liquid clorox in the motorhome and 5th wheel.

 

[JimS123]

What you are using isn't bleach, plus its flake, not liquid. Different animal all together. I used to use that stuff too.

I realize its a nice color and all, but plain old bleach works just as well and is much cheaper besides.

Now I get mine from a chemical supply house. Its actually about half the cost per gallon, and I use half as much. Double win win.

 

[jerrybrecko]

Need help with a stinky smell problem

My brand new boat smells like sewage. We originally pumped out the bathroom. The smell was there since we docked it. It comes every once in awhile but sometimes it's so strong. It's not the bathroom, we pumped out the bathroom. We already bleached the holding tank, all of the lines, hot water tank ,and drains. We bleached all of it with chlorine and we can't figure it out. Now when we turn on the air conditioner and sniff it, it smells like it might be coming out of the AC but not that strong. We don't know what it is. Any help is appreciated!

 

[Redfred1]

Turn the AC on Low Fan; put several small bowls of household ammonia out. Close it or cover it up. Your odor will disappear.

 

[GA_Boater]

Your 4 threads on this same subject have been merged with the original. With no history, you are receiving the same advice over and over again.

Now for the first time as I recall, you are saying it's a brand new boat. Is it new to you or a new boat?

If it's a brand new boat, have you had the dealer look at it?