what chemicals to keep water clean and clear in a wood fired hot tub

[stvee]

Hi,

 I have a wood fired hot tub. with a molded plastic inside, an external stainless steel heater and a sand filtration system.

The water still gets manky ( and probably full of bacteria) after a few sessions........

People use it daily and ideally i don't want to change the water more than once a week.

What chemicals do you recommend i use to keep the water clean, ideally NON chlorine as that will corrode the heater?

Many Thanks- Steve

[Tman122]

Hi,

 I have a wood fired hot tub. with a molded plastic inside, an external stainless steel heater and a sand filtration system.

The water still gets manky ( and probably full of bacteria) after a few sessions........

People use it daily and ideally i don't want to change the water more than once a week.

What chemicals do you recommend i use to keep the water clean, ideally NON chlorine as that will corrode the heater?

Many Thanks- Steve

If you want clean, sanitized water, you have to use chlorine or bromine. The heater is SS. It will burn up before it gets wrecked by chlorine.

[BullFrogSpasMN]

your options would be: Granular Chlorine, Bromine Tablets, Baqua-Spa/Hydrogen Peroxide, or you could plumb an in-line ozonator in and combine that with a silver ion cartridge and use small amounts of non-chlorine shock after each use

[Dr. Spa™ Ret.]

Chlorine, in the small amounts used in hot tubs,  should have no effect on the heater.

[stvee]

Great,
Thank you for all advice.
Steve

[Tman122]

or you could plumb an in-line ozonator in and combine that with a silver ion cartridge and use small amounts of non-chlorine shock after each use

BFSM the problem with this is your still supplementing with chlorine. I like to reverse think it. Start figuring out chlorine and supplement with ions and oxidizer.