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Old 10-06-2015, 09:42 AM   #1
Mark N.
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Join Date: Oct 2013
Location: Ogden
Posts: 580
M.O.C. #13862
Sanitizing with Sodium dichlor (with pictures)

I always sanitize the system 3 times each season: Once before storage and once during the summer, and again before winter storage. It's cheap, and easy insurance.
I have used Sodium dichlor for years, so I thought I would include a few pictures. Sodium dichlor is cheaper than bleach, safe, easier on plastics than bleach, a LOT less messy than bleach and stores easily. There is not a single downside to it compared to bleach.
The steps I use:
1.- Drain the hot water heater and close the drain again.
2.-Hook the fresh water fill hose to the fill port.
3.-Fill the water tank about 1/4 full and turn off and disconnect hose at the source.
4.-Dump about 1-tsp. Sodium dichlor into the hose.
5.-Finish filling the tank.
6.- Turn on the pump, open each valve in the trailer and let the treated water run for a minute or so. Don't forget the outside valves and the low-point drains. I fill the hot water heater with treated water. Contrary to popular wisdom, the temps. in a hot water heater are NOT enough to sanitize. That requires 165 degrees.
7.-Let it sit for a few hours (Or overnight if you wish, it certainly won't hurt anything.)
8.-Drain the tank, refill, flush out each line for a few minutes, drain a final time and you are done!
I have included pictures of the product I use. I use it in my hot tub, and I believe it was about $10. If using it for RVing only, a 1-lb. bottle of Sodium dichlor should provide over 100 tsp. doses. That's about 9 cents per tsp.!
The accepted rate is 1 tsp. per 100 gals. of water. I usually double that because it is soooo cheap, and it won't harm a thing to double the dose.
I have included a picture of a test strip showing the high chlorine concentration this tsp. provides in my "full to the top" fresh tank. Plenty concentration for sanitizing. You DO NOT need to buy test strips, I just wanted to show you that such a small amount works fine!
A small tightly sealing and labeled pill bottle full would last you for about 3 seasons doing it even twice a year! At $10 dollars per bottle, that is about 18 cents per year, of Sodium dichlor.
Remember this stuff is as safe as bleach, and a LOT easier to handle without spilling. Just keep it away from kids as with ANY chemical.
(As a final step, though not required, I treat the chlorinated water in my tank with another chemical I have on hand, Sodium thiosulfate, to neutralize the chlorine before I dump it. I know most people just send it down the sewer drain. I alwas just let it drain into my gutter in the street, so I make sure it is chlorine free before doing so, my storm drains around here end up in rivers, and chlorine is really bad news for aquatic ecosystems. Sodium thiosulfate is totally dirt cheap and totally safe. You can eat the stuff. (In fact, many people do for health reasons!)img]http://i1378.photobucket.com/albums/ah91/mark_nixon1/Mobile%20Uploads/20151006_110115_zpshepytavd.jpg

Edited by Rain Ducker, because these photos are making the page scroll. Please resize or leave as links.

Thank you Rain Ducker.
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Old 10-07-2015, 07:20 AM   #2
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Good info. Thanks!
2011 3150RL
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Old 10-07-2015, 07:29 AM   #3
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Old 10-09-2015, 06:56 AM   #4
Rain Ducker
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Please resize these photos ASAP, check your email and check your PM's here on the forum.

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Old 10-09-2015, 09:13 AM   #5
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This is what we have done the last 3 years and it works really well. I also have mounted a 3 step filter in our basement to keep from freezing for all water coming into the Monty, a sediment and then a charcoal. The third filter is open now but I can add a "special filter depending on the area we are camped, for anything that may be unique to that area such as iron etc. This seems to have worked well in keeping the water clean in all areas of the unit. The only thing that I have to do is disconnect the water hose if it going to freeze over night. I use quick disconnects on the hose to make it easy. I also keep some water in the tank for use until I reconnect the hose.
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