Black tank dump valve
So we have struggled with our dump tank valves since buying our Forrest River MBS. The valves have always been hard to open. We have really struggled with the blank tank valve. We had them replaced in March, our rig is only 4 years old. Went camping for the first time this week and the gray tank opened with no issues. Moved like a hot knife through butter. The black tank would not budge. I am so tired of fighting with these tank valves. In the past we have been able to use ice and a lot of Dawn dish soap to help open the black tank. No luck this time. Any hints, suggestions? I am at my wits end!