Drain Line Cleaners & Pan Treatments

Condensate drain line cleaners and pan treatment tablets that keep the drain open between service calls — Nu-Calgon Drain-Solve, Calci-Solve and Gel Tabs; DiversiTech Flow-Plus, Pro-Treat and SANI C-N-D; RectorSeal NuLine NL1 and NL2; ACE DT2 tablets; plus the ClenAir A/C Drain Sucker clog repair kit.

Tablets sit in the pan and dissolve slowly to suppress the biofilm that closes a 3/4 in condensate line. Liquid cleaners are for a line that has already clogged. Nu-Calgon Gel Tabs are rated by tonnage — 3, 5 and 20 ton — so match the tablet to the equipment rather than to the size of the pan. SDS is linked from every product page.