Holding tank build-out
Need to increase the size of the current holding tank for the head from 5 gallons to much larger tank size. Current site of 5 gallon holding tank does not allow for larger tank. Currently, holding tank is near the head on port side under settee. Starboard settee has ample space for a 30 - 40 gallon tank, depending on shape, but there is limited space for running the plumbing.
Rather than relocating all the lines / plumbing to the starboard settee (which will be difficult to impossible due to space limitations), could I just add a 2nd tank with an overflow line such that I only had to relocate / add 1 line? Would this cause issues with pump-out? Or other issues?
Boat is currently lake sailed, discharge overboard has been disconnected.