We have used Therma Swim for several years. Last year we tried a different brand. Came back to Therma Swim. First day the pool temperature went up 6 degrees.
We won’t use anything else going forward.
Original shipment was damaged and discarded by the shipper. National Discount Pool Supplies got another shipment out immediately and it arrived only one day late. Very happy with the service.

Used for water evaporation. So far it helps.

Used for water evaporation. So far it helps.

We have used Therma Swim for several years. Last year we tried a different brand. Came back to Therma Swim. First day the pool temperature went up 6 degrees. We won’t use anything else going forward. Original shipment was damaged and discarded by the shipper. National Discount Pool Supplies got another shipment out immediately and it arrived only one day late. Very happy with the service.