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Post by skinut63 on Aug 20, 2018 12:12:38 GMT -5
Hi, I am new to the forum since we just purchased a 2019 311TH10 5th wheel toy hauler. I've searched the forum but can't find a solution listed so thought I would ask for input.
Has anyone figured out a solution for drawing down the fresh water tank more than it does as it comes from the factory? Our tank is about 6-1/2" high, and with 2" left in the tank, it starts sucking air due the location of the outlet on the tank, so we can't even use the last 30% of the water in the tank. Not a huge factor from an extra weight perspective, but it's over 20 gallons wasted on a 75 gallon tank.
I'm guessing they do it to prevent sediment from entering the pump, so I'm hesitant to just put a T in the drain line and pull from there as well.
Thanks in advance.
Phil
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Post by lynnmor on Aug 20, 2018 13:30:11 GMT -5
I put a tee in the drain line. You have a strainer before the pump that will protect it from larger debris.
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Post by johnr on Aug 27, 2018 7:45:42 GMT -5
Is the tank level when your trailer is level? Maybe it's sitting a little crooked and can be shimmed?
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Post by lynnmor on Aug 27, 2018 8:23:31 GMT -5
Is the tank level when your trailer is level? Maybe it's sitting a little crooked and can be shimmed? They put the pickup port on the side of the tank well above the bottom. When the water level drops to the top of that pipe connection, the pump will suck air. Add to that problem many tanks have little support on the bottom allowing it to bulge down, the water within that bulge is also wasted. |
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Post by johnr on Aug 28, 2018 6:38:12 GMT -5
Is the tank level when your trailer is level? Maybe it's sitting a little crooked and can be shimmed? They put the pickup port on the side of the tank well above the bottom. When the water level drops to the top of that pipe connection, the pump will suck air. Add to that problem many tanks have little support on the bottom allowing it to bulge down, the water within that bulge is also wasted. Is it possible that the tank is designed not to be installed level so that there's a pitch toward the outlet? |
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Post by lynnmor on Aug 28, 2018 9:56:29 GMT -5
Is it possible that the tank is designed not to be installed level so that there's a pitch toward the outlet?[/quote] I have never seen that done and highly doubt that it was ever done that way. RVs are "designed" to reduced labor costs at assembly. If you would open up the water tank area, then you would see many improvements that should be made in order to make the installation reliable and water efficient. |
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Post by getoutdoors on Oct 19, 2018 17:50:33 GMT -5
I had that problem with one of my campers. The connector was on the side of the tank which left a lot of water not available. I was about to move the line to 'T' into the drain hose which was center of the bottom. But then got a new camper. My new camper has a covering over the entire bottom. KZ connect. I wonder where the intake to the pump is??
I have seen some models that feed from the very bottom.
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Post by skinut63 on Nov 1, 2018 21:29:07 GMT -5
Thank you for all the input.
My tank appears to be level when the camper is level, but there is the issue of the sag in the middle of the tank from lack of support.
When it warms up again here in MN I'll open up the underside again and try a tee in the drain line. Hopefully I can find some kind of inline filter I can install over by the pump as an extra precaution.
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Post by laknox on Nov 2, 2018 10:55:46 GMT -5
Hi, I am new to the forum since we just purchased a 2019 311TH10 5th wheel toy hauler. I've searched the forum but can't find a solution listed so thought I would ask for input. Has anyone figured out a solution for drawing down the fresh water tank more than it does as it comes from the factory? Our tank is about 6-1/2" high, and with 2" left in the tank, it starts sucking air due the location of the outlet on the tank, so we can't even use the last 30% of the water in the tank. Not a huge factor from an extra weight perspective, but it's over 20 gallons wasted on a 75 gallon tank. I'm guessing they do it to prevent sediment from entering the pump, so I'm hesitant to just put a T in the drain line and pull from there as well. Thanks in advance. Phil IMO, =all= tanks, but most especially fresh water, should draw/outlet from a small sump molded into the tank. Really, how hard would it be to use a tank like this? Note the support straps, too. Almost certainly add-on... Lyle  |
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