How do you change filter on a sand filter?

Answer:
You don't change the filter on a sand filter, you back wash it. Unless you mean how to you change the sand in a sand filter. This is done by removing the multi port control from the top of the unit sucking out the sand with a venture made for the occasion (ask your pool shop) and replacing the sand. This needs to be done about every 3 to 5 years. Furnace Filters, Air Conditioning Filters at Air Sponge Filter Company
http://www.airsponge.com
First answer by Robbb. Last edit by Jagat soo. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].