According to the Intex salt table, a 18' x 48" pool holds 6423 gallons of water. The amount of salt required for start up is 160 lbs to give a concentration of 3000 parts per million. Ensure all the salt has dissolved (run the pump for 24 hrs) before turning on the saltwater system. As long as the low salt alarm doesn't go off you're fine. Remember it's easier to add more salt if required that it is to take it out if there is too much.
answered 2 years, 11 months ago
I have a 15x48 intex and I pored 120 lbs in and stir the water with the skimmer and turned the punp on for 24 hours then turn on the salt system with the pump on and its ready for the summer never need to add salt. Unhook the salt system every two weeks and soak it in vinagar, then its ready all summer.
answered 3 years, 8 months ago
- Terre Haute, In
The manual states 135 lbs. I tried to do 3 bags at 120 lbs, but PPM was low. Go with the 135 lbs which is 3 bags plus 15lbs out of the 40 lbs of a 4th bag.
You can keep the extra from 4th bag to add when salt level gets low, which can happen after a lot of rainfall, and you have to drain some of the pool water.
answered 3 years, 9 months ago
If it's an easy set, then it would be an AVERAGE of 135 lbs, if it is a straight sided, metal framed pool then it would be an average of 160 lbs. (I say average because it could take as little as half of what is called for to as much as one & a half the amount called for. It all depends upon the chemical & mineral make up of the water your pool is starting out with. For instance, our's called for 95-100lbs of salt, yet we only needed 65lbs for our's to run properly & produce the right amount of chemicals for us. And we swim in it everyday for several hours. So to keep our levels correct, we need it to generate more chlorine than most people with pools our size. I say that because we have a very heavy daily use of between anywhere from 2-4 adults & 5-7 kids that use the pool for around 4 to 6 hours of every single day. In addition to that, it also sits in direct sunlight 100% from sunrise to sunset. So, with everything combined, our pool really uses up the chlorine exceptionally quick. However, with us using the Morton brand pool salt combined with the Intex Chlorine Generator, we have had NO chlorine issues whatsoever, and we only have to run the generator 2 hours every evening & we keep consistantly perfect chlorine levels.
answered 3 years, 11 months ago
The salt water system manual should have a chart in it. Just look up the kind & size of your pool and it should tell you how much to put in. I have a 15' X 48' Metal Framed Intex pool (4440 gal.) and it requires 110 lbs. of salt. You may also need to add more as the swimming season goes, it just depends on how much water loss. Hope this helped.