Forum Discussion
Bobbo
Aug 01, 2014Explorer II
Do yourself a favor and get a 2 gallon accumulator tank. It will do everything the Shurflo tank will do, and will let you flush the toilet all night without the pump turning on once. It's cheaper too.
Here is a picture of my 2 gallon tank installed under my kitchen sink. Note the bypass that I added so I can keep antifreeze out of the tank. It diverts the flow to a tube that I can then open to let the antifreeze fill the line going to the tank.

Note that "not necessary" is not the same as incompatible. The bypass pump doesn't do that pulsation thing the older pumps do, but the accumulator tank adds the ability to flush the toilet all night without the pump turning on. A bypass pump can't do that. For me, that was the more important of the issues.
Here is a picture of my 2 gallon tank installed under my kitchen sink. Note the bypass that I added so I can keep antifreeze out of the tank. It diverts the flow to a tube that I can then open to let the antifreeze fill the line going to the tank.

4aSong wrote:
My TT has a 4008 RV By-Pass Pump By SHURflo and the Installation and Maintenance manual says that there is no need for an accumulator with by-pass pumps. Will an accumulator help or hinder when used with this pump?
Note that "not necessary" is not the same as incompatible. The bypass pump doesn't do that pulsation thing the older pumps do, but the accumulator tank adds the ability to flush the toilet all night without the pump turning on. A bypass pump can't do that. For me, that was the more important of the issues.
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