Discharge hose - tank bottom or side?

[Bill Gladstone]

We are installing a new holding tank and have the option of installing the exit hose on the lower side or bottom. I see most are lower side mounted but figure a bottom mount would allow more complete pump out. Is there a problem with installing with discharge at bottom of tank?

 

[redhead78]

Bill I purchased a 27 gallon tank made by ronco and the factory tec Bill helped me out tremendously. I ended up with a top drain out that worked best for my situation, they built in a drop tube to the bottom of the tank. I had them do the head into the very top of the side and the vent on top. They have probably 500 tanks in stock and u can have the opening put where u want them.....Red

 

[Ralph Johnstone]

An Excellent Design .......................

....................... if the tank is supported in such a way that the underside fitting is accessible.

I think all tanks would be made this way if it weren't for the problem of gaining access to the underside of the tank.

 

[alexco38]

Bottom exit: if the coupling or hose clamp leaks, you got a leak. Gravity !

Top or near top exit: with a drop tube is the best. If you got a leak, nothing happen. Unless you filled the tank past the top ;-(

 

[Chuckbear]

We opted to have a bottom fitting in our new holding tank. It drains the tank much more completely that any of our previous tanks that pulled from the top via a pick up tube. The only real down side is that if you have a failure of any part of the discharge line below the top of the tank it will leak into the boat. A fitting at the top will not do that. So the decision is yours as to whether you are comfortable with this kind of set up. Chuck

 

[Bill Gladstone]

Thanks to all respondents. We went with a pick-up tube from top of tank. Avoiding effluent residing in bottom hose day to day and potential of catastrophic failure. As a bonus this set up provided short straight route to pump out.