Quote Originally Posted by Phillbo
Doing a replaster on the pool and will convert to a SWG at the same time. 21K gallon pool. About how much salt will I need to add in the beggining?



and can I just use the salt pelets I see at Home Depot for the soft water systems?

I would look for the granular salt for water softners and pools... Blue bag at home depot... about $4-5 a bag... It will dilute a LOT faster and I actually just sucked it up with my vacuum a little at the time and ran it though my system...Pellets may hurt the new plaster just sitting on the bottom... Maybe... Maybe not... Either way the granular will be diluted a lot quicker... For a 25K pool it would take about 600lbs to go from 0ppm... and about 400lbs to get from 1000ppm...May need to take a measurement up front to determine where you are starting from if your SWG doesn't give you a reading... If you are using something like an Autopilot it will tell you how much to add! Good luck!

Scott