Hot tubs and spas

how does the salt leave when the water evaporates?

hint: it doesn't.

Depending on your climate, some kind of a ERV or HRV may be better than an exhaust fan.

So you're going to display your vintage Corvette next to your endless pool?

"Jim & Lil" wrote in news: snipped-for-privacy@corp.supernews.com:

Why not get a salt system for your pool instead of using chlorine? Almost all new pools being installed are using salt systems. You never need chlorine. All they use is salt. Much nicer on the body and cheaper to operate also. Only time you need to add salt is when you loose water due to evaporation or splash out.

We are planning on converting our bromine pool to salt next summer.

"Charles Spitzer" wrote in

Good point. However, that is a moot point since it is all electronically controlled and will tell you when and how much salt to add. You can also set the controller to shock the pool.

Shock it... with chlorine, right? I thought those systems separate the sodium ions from the chlorine ions and use the chlorine to chlorinate the pool. Aren't you still chlorinating with this setup?

The salt system uses about 4-6 PPT salt. (about the same as contact lens solution). The principle is they have a chlorine generator in line with the pump that creates instant chlorine from the salt but it quickly goes back into salt. In that short time the water is purified as it goes through. You still shock the pool occasionally with regular chlorine to keep things clear. We had a demonstration at one of our inspector meetings a while ago. The generator really foams up the water with microbubbles of pure chlorine.

Maybe we're getting off the subject but it's a direction in which I have some interest. I stated renting a house 10 months ago that has one of these salt water pool setups. Yes, the water is chlorinated but I don't think it's nearly as much as a normal pool. I don't know why one wouldn't need as much chlorine in the water. (Maybe the chlorine and salt have a combined effect?) This is the first time I've even had a pool so I can't compare it to what one would normally have in their home setup but I can say the level of chlorination isn't nearly what it is in my father's spa. We do have to resupply salt from time to time (about 600kg per year). True, salt doesn't evaporate with the water, but there must be enough loss when backwashing the filters to merit the additional salt. Sounds like a lot of salt loss - doesn't it? Maybe the pool guy is backwashing too much? :-0 Also, some salt has to leave as it is converted to chlorine and sodium. I can't even begin to speculate how much salt that eats up. By the way, the salt level is somewhat lower than sea water too.

Maybe we're getting off the subject but it's a direction in which I have some interest. I stated renting a house 10 months ago that has one of these salt water pool setups. Yes, the water is chlorinated but I don't think it's nearly as much as a normal pool. I don't know why one wouldn't need as much chlorine in the water. (Maybe the chlorine and salt have a combined effect?) This is the first time I've even had a pool so I can't compare it to what one would normally have in their home setup but I can say the level of chlorination isn't nearly what it is in my father's spa. We do have to resupply salt from time to time (about 600kg per year). True, salt doesn't evaporate with the water, but there must be enough loss when backwashing the filters to merit the additional salt. Sounds like a lot of salt loss - doesn't it? Maybe the pool guy is backwashing too much? :-0 Also, some salt has to leave as it is converted to chlorine and sodium. I can't even begin to speculate how much salt that eats up. By the way, the salt level is somewhat lower than sea water too.

snipped-for-privacy@aol.com wrote in news:p2kgm1l2psvr2amv5ip5792sjhcv53kala@

Our pool guy told us that we did not need to buy any chlorine to shock the pool. Simply turn up the level on the generator to 'shock level' for 12 hours or so.

amankz had written this in response to

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