No it does not go bad, but it may absorb water. That will just make it clump and heavier, but it should still be effective.
No it does not go bad, but it may absorb water. That will just make it clump and heavier, but it should still be effective.
15.5'x32' rectangle 16K gal IG concrete pool; 12.5% chlorinating liquid by hand; Jandy CL340 cartridge filter; Pentair Intelliflo VF pump; 8hrs; Taylor K-2006 and TFTestkits TF-100; utility water; summer: automatic; winter: automatic; ; PF:7.5