Has anyone used an SWG in conjunction with a free standing hot tub? I have an 11 x 8 675 gallon model. Would an SWG work? Or would you recommend a Frog floater for costs?
Your thoughts please.

Paul

BUMP

Any good answers for this?

Frogs should be in their bogs btw...

What is the make/model of your tub?

There are a few manufactures that incorporate SWCG into there tubs. Of course with salt you are always concerned about corrosion. Call the manufacture of your tub to see if its plumbing will support salt and what it will due to your warranty if you have one.

What is your reason for wanting to go with a SWCG?

Ease of use?

Will you be leaving the tub unattended for days or weeks at a time?

Personally on a fresh fill I dose with salt to about 2000 ppm. This is enough to get the benefits of the feel of salt. I then use chem geeks Dichlor/Bleach method. This water feels similar to a SWCG but costs WAY LESS. You can sanitize your average tub for about $2 a month with this method.

There are aftermarket SWCG's for tub's that hang over the side of your tub. I have seen Technichlor and Nexa being a few. These units go for about $300 and will last about 3 years. Bleach is $60 for 3 years.

As long as you will be using the tub at least once every 2 to 3 days Dichlor/Bleach will work perfectly. If the tub will be neglected for a week to 10 days a Bromine floater would be best. If you will be gone for more than 2 weeks a time the SWCG is needed.

It all depends on your needs. With a pool a SWCG is nice because of the amount of bleach you have to add to it daily (several cups to several gallons). With a tub it is so much a necessity because it takes 30 seconds at the end of a soak to add a few ounces of bleach.

For Bromine users, the Genesis system is a saltwater bromine generator. That is an inline system (i.e. you cut into your plumbing to install it).

Sanitizer usage in a tub is highly variable, depending on how much you use it. SWGs are good at producing constant amounts of sanitizer at a slow steady rate. That isn't an ideal fit and results in a fair bit of manual intervention being required. As a result the benefits of a SWG are mostly lost when used with a hot tub, and they are far less common in that application then they are for pools.