Original > Hot Tub Forum
Salt in a chlorine hot tub
Sam:
Manufacturers don't offer salt because they've tested them and seen corrosion. I've spoken with multiple factory reps who've said this. I've seen firsthand quite a few people on salt systems have corroded heaters. I'm not sure what you're doing differently.
Gravelydude:
As a soon to be hot tub purchaser, this thread poses some diametric views on water sanitation and conditioning!
bud16415:
--- Quote from: Gravelydude on February 06, 2018, 07:02:01 pm ---As a soon to be hot tub purchaser, this thread poses some diametric views on water sanitation and conditioning!
--- End quote ---
Yes it does. I’m not new to hot tubs as we have had ours for about 3 years now and this question is one that is hard to get a straight answer on.
The debate normally ends up centering on the heater at some point and heaters do start to corrode and weep at some point and then moisture gets into the electrical side of the sealed up unit and shorts tripping the GFIC and you are done. For me this type of failure is all the thermal cycles on a welded and supposedly stainless steel piece that salt should have no impact on. There are many different grades of stainless steel and some are better in different properties. Pumps are another area of concern and are supposedly designed to function without problems in water with bromine or chlorine sanitizers in them. Is the mild salt solution different?
I got the exact same narrative Sam stated above from my dealer. But would like to see something solid saying salt is bad for XYZ and here is the science behind it. Heaters fail everyday in salt tubs and non salt tubs. Is there a recorded increase in salt tubs. Is it like if I put salt in my tub I will expect to change my heater every year instead of every 10 years?
Can someone even tell me what material exactly a heater, pump etc are made from and then I would know just by looking up the properties of that material.
As far as I know the companies that offer salt systems don’t put different heaters in the tub if it is getting salt.
Then there are people that have switched over and I don’t hear an outcry of salt ruined my tub from them.
BullFrogSpasMN:
--- Quote from: Sam on February 06, 2018, 02:20:12 pm ---Manufacturers don't offer salt because they've tested them and seen corrosion. I've spoken with multiple factory reps who've said this. I've seen firsthand quite a few people on salt systems have corroded heaters. I'm not sure what you're doing differently.
--- End quote ---
"multiple factory reps" did those guys happen to rep brands that don't offer salt? hmmm i wonder lol....only reason I would ever call a rep is if I ran out of brochures, they don't have any technical backgrounds, hell half of them can't even sell themselves. Also I'd like to see these "corroded heaters" you speak of? low pH will corrode a heater 10x faster than 1800 ppm salt in the water so maybe they need some general water-care education?
Cora5:
The debate continues.... Keep it up guys, let's get to the bottom of this once and for all. What's really going on here.
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