Hello, I have a recently built above ground pool (Cornelius brand), 18 foot round with 4 feet of water (walls are 52" high), so I'd say about 7600 gallons. It has an automatic chlorinator, but I know this forum recommends either using liquid bleach daily, or getting a SWG. I will find it difficult to pay daily attention to my pool, so this is why I'm leaning towards a SWG.
I did find one on Amazon made by Intex, which almost seems too good to be true: Only $135. I had a SWG on my last pool, but I paid Leslie's Pool Supply to install it, and it seems like it was in the 4 digits by the time you include installation labor. Admittedly that was an inground pool, around 11000 - 13000 gallons.
The specs of this Intex one says it can handle up to 15,000 gallons, and I think I've read here that you recommend getting one that can handle more water than I have, and as I have 7600 gallons, this sounds like it fits the bill.
I'm considering, assuming this is an okay brand to get, doing my own installation. In general, is it as simple as running a pipe from my sand filter to this system, and another pipe from this system to my jet? And plug the power cord into an outlet?
If it helps, my pump manual says "Maxi Pump NE6151B/NE6171B", and it's a 1 horse power pump. The Sand filter manual says "Blue Wave Sandman Sand Filter System NE6150 / NE6170"
Also, at my last house with the inground pool, it was set up so that whenever the pump turned on, it started generating chlorine. Is this how they all work? If so, I guess it's not as simple as plugging it into an outlet. Actually, maybe it is... my pump is plugged into a timer, so maybe I could plug the SW system into the same timer. There's only one outlet in it though, so I'll need some kind of power splitter that allows me to plug two things into it.
Also, I've read some people have rust problems, but the tops of my pool wall are made of resin and can't rust. But I don't know if there are other parts of the pool that are susceptible to rust or not.