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Old 12-07-2018, 11:36 AM   #1
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Join Date: Sep 2017
Posts: 152
DX3 Winterization Tee-Valve Backwards

A simple visual of the Tee-Valve, it looked like it should be installed correctly. However, it was functionally backwards as I determined by blowing air thru each of the ports and observing the exit points.

Details: The Tee-Valve has 3 ports to it with a switch at the tubes intersection point.

Port #1- (Open/Closed) Depends on switch position. Connects to water tank.

Port #2*- (Open/Closed) Depends on switch position. Connects to winterization hose.

Port #3- (Always Open) NOT Dependent on Switch. Connects to water pump.

*(Note: Ports #1 & #2 cannot be open/closed at same time.)

My Port #3 was connected to Water Tank and Port #1 connected to Pump. In this configuration, antifreeze dumped into water tank vs going into pump.

Thought I would document this so factory could check to see if product using is labeled/manufactured wrong or something else is occurring during installation. Initially, thought we had a bad switch, but that was not the case.
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Old 12-07-2018, 11:42 AM   #2
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Join Date: Nov 2007
Location: Bristol, IN
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Thanks. I am going to request that engineering (if we don't already) creates a detail on that fitting to show proper orientation. Could be just an oversite on the install...or maybe they're not being shown the proper way.
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Old 12-07-2018, 01:16 PM   #3
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Join Date: Feb 2017
Location: New Jersey
Posts: 117
Mine was also installed backwards.
Purchased some small stainless steel worm drive hose clamps, cut off the existing clamps , turned the tee around, and it worked fine.
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valve, winter

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