Water Valve 8555.200 - Tunze

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Water Valve 8555.200 - Tunze

SKU: 208030
6 Review(s)
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  • Problems By on 3/7/2016

    Nice when works properly but it will not open half the time when it should and tunze unit shuts down; I then have to reset tunze each time after unplugging power to it
  • Failed in the on position. Scary stuff. By on 2/1/2016

    Recommend (sort of)with big caveat. Used without issue for 6 months. BRS video on redundancy for Tunze osmolator and RO/DI saved me big time. Big time. Solenoid stuck on the on position and fortunately float killed flow. Apex shut everything down but didn't matter as solenoid was open

    Event has left me not trusting it completely. I will switch to pump that apex can shut down.

    Changing resin probably left a bit to go downstream and contibuted to failure of gate. BE CAREFUL WHEN CHANGING RESIN

  • No more carrying RODI water By on 1/2/2016

    I love this thing. It allowed me to use my Tunze ATO system along with an RODI installed in the room behind my tank. I just run the blue line through the wall and it's all set. I never have to carry RODI water again!

    Pro tip: I have a reservoir above my sump that has a mechanical float valve. It simply gravity feeds into the sump as the water level drops. Therefore, the RODI and Tunze just refill this reservoir. So, I programmed my Apex to only power the ATO for 60 minutes, 1 time per day. This lets it keep the reservoir full, but doesn't cause the creep in my RODI system that you get when it does short cycles.
  • Broke while unpacking By on 11/24/2015

    I was in the process of setting up my new valve when a plastic fitting broke off from the brass value. Very disappointed, because now I'm working on returning the until to the manufacturer instead of working on my reef project.
  • Awesome valve By on 2/12/2015

    The way the valve is built inspires confidence! I just connected it last night and already am very happy...no leaks and no mess. Long cable with soldered ends is a big help too.
  • Works fine and as described By on 9/5/2014

    I needed this valve to replace my pump because I was tired of filling my top off container every 3 days. I set up another RO/DI to automate this process and I'm using this valve. I added a float valve in the sump to prevent any floods if the valve fails (of course it should fail in off position according to the instructions). Also, I added a float switch and set it to turn off the ATO through my apex neptune. I don't know if it's overkill but I'm paranoid about having a flood. It's been working great so far and the push connectors don't leak. There may be cheaper alternative I imagine but I did not want to spend the extra time and effort. Overall a great product if you want to hook up your RO/DI unit up for ATOs