RV Waste Tank Valve Tip

This post may contain affiliate links, meaning I get a commisson if you decide to make a purchase through my links. There is no addtional cost to you. See Affiliate Disclosure

RV Waste Tank Valve Tip

I’ve just finished replacing the black waste tank valve on my Keystone Cougar 276RLS fifth wheel and have a little tip for you. The main reason my black tank valve needed to be replaced was due to a crack forming near the pull rod output hole. I believe this was from me having to use extra pressure to open and close the valve. It tended to get quite sticky and require a lot of force. A good way I learned to keep the waste tank valves running smooth is to spray a little silicone lubricant on the push rod shaft every so often. Make sure you use 100% silicone spray. Silicone won’t harm the rubber gasket material used inside the waste tank valve. I don’t recommend using WD40 as it is petroleum based and may eat the rubber gaskets.

valterra waste tank valve

If your valves are easily accessible it might be a good idea once a season to remove, disassemble  and clean them. Before reassemble coat the gasket rings with some silicone plumbers grease. If not easily accessible a little olive oil down the toilet seems to help keep the black tank valve lubricated.

Share the post