Yeah, I hadn't checked that. But that would be better. With sand filters, the biggest filter you can backwash is the best choice. It takes about 13 - 14 GPM/sft to backwash sand.
Yeah, I hadn't checked that. But that would be better. With sand filters, the biggest filter you can backwash is the best choice. It takes about 13 - 14 GPM/sft to backwash sand.