Forum Discussion
PawPaw_n_Gram
Apr 12, 2015Explorer
Because RVs have very limited room under the floor - it often isn't feasible to drain a sink into the same grey water tank as the bathroom shower.
If the RV has two bathrooms - there have to be two black water tanks.
With a front kitchen and mid-rear bathroom - the 3008W has a 38 gallon black tank and a 38 gallon grey tank at the back. This has to be the primary drain location because the black tank has to have the 4" diameter outlet pipe. The kitchen has a 38 gallon tank. There simply isn't enough rise/ fall to run the drain from the kitchen sink to the rear grey water tank.
The 8310SS has the same issue - the rear kitchen sink is too far from the bathroom for using one grey tank. It also has two 38 gallon grey tanks and one 38 gallon black tank.
Perhaps if manufacturers would take an extra four inches and run a drain pipe inside a sidewall. That would work with the 8310SS if the door was moved forward about three feet.
Would have to eliminate the slides to make it work in the 3008W.
If the RV has two bathrooms - there have to be two black water tanks.
With a front kitchen and mid-rear bathroom - the 3008W has a 38 gallon black tank and a 38 gallon grey tank at the back. This has to be the primary drain location because the black tank has to have the 4" diameter outlet pipe. The kitchen has a 38 gallon tank. There simply isn't enough rise/ fall to run the drain from the kitchen sink to the rear grey water tank.
The 8310SS has the same issue - the rear kitchen sink is too far from the bathroom for using one grey tank. It also has two 38 gallon grey tanks and one 38 gallon black tank.
Perhaps if manufacturers would take an extra four inches and run a drain pipe inside a sidewall. That would work with the 8310SS if the door was moved forward about three feet.
Would have to eliminate the slides to make it work in the 3008W.
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