Health Departments need to be sure that water being used for pool filling is safe for human contact. The CircleClear backwash water recovery system removes all micro-organisms from backwash water to make it safe. The pore size of the desalination (RO) membrane is less than 0.001 micron, Virus sizes are from 0.008 – 0.1 microns, bacteria sizes are from 0.2 – 50 microns and Cryptosporidium is from 3-5 microns. Thus, the membrane pore size is too small for all micro-organisms to enter the treated water and can therefore offer a guarantee of removal of 99.9+% of viruses, bacteria and pyrogens.
