I use the RV Antifreeze in the toilets and drains. After filling the drains close the stoppers, and use cling wrap on the toilets if real dry. Don't forget floor drains and the washing mach. Takes me about 4 gals for 3 baths, kit, bar, laundry, and floor drain in furance room. Do the house in WA in the Fall and the TX house in the Spring.
04 Horizon QD, 12 Ford Flex, Excalibar, Brake-Pro, ,, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat 74 MGB-GT, 75 MGB, 01 Z3
Life is a Timed Event, you only get One Go Around!