Prevent PMUP from constantly pushing water

[GamerDadof4]

I would put in a syphon break, or 2 before a solenoid. I hole you could wipe down or clean with regular maintenance. A solenoid won't do anything until it fails.

Can't you just remove the pump from the water when you are done? You would just need to lift it until the water drains, then plop it back in. Unless you are doing auto water changes, then there would be more to it.

Yeah everything is automated. I have a saltwater mixing station in the garage where I can pump in freshwater for ATO and Saltwater for changes. I have the PMUP in my tank for the auto water changes.

 

[Silent]

Cant you just put a valve on the pump outlet and open it to pump out water and when done just close it. $5 problem solved.

 

[GamerDadof4]

Cant you just put a valve on the pump outlet and open it to pump out water and when done just close it. $5 problem solved.

Not sure this applies.? I have my water change automated, but the pmup that sits in my sump to pump out water automatically starts pumping when submersed.

 

[Silent]

Oh, auto water changes. In that case an electronic solenoid would work well. Any size you need on amazon. I use the brand US Solid for my ATO and works flawlessly. You might like this so it can plug into apex and turn on with your pump. Just need adapter on each side for 3/8. Search amazon.
1/2" 230 PSI Electric Solenoid Valve 110-VAC VITON Normally Closed

 

[Albertan22]

Oh, auto water changes. In that case an electronic solenoid would work well. Any size you need on amazon. I use the brand US Solid for my ATO and works flawlessly. You might like this so it can plug into apex and turn on with your pump. Just need adapter on each side for 3/8. Search amazon.
1/2" 230 PSI Electric Solenoid Valve 110-VAC VITON Normally Closed

Just be careful that it’s rated for saltwater if you’re not just using it as an air vent or the salt will eat away the brass and it will fail. Not something to worry about for an ATO as the water would be fresh.

 

[GamerDadof4]

Haha - so I spent a couple grand on my setup and thought I could get away with a $5.00 3/8" coupling with tiny tiny hole drilled in at an angle to break the siphon....

Well it worked! It broke the siphon like a charm... except.... even though the hole is as small as I can get it (1/16th) drilled at an angle - this tiny PMUP shot water out of it about 6 feet! It was pointed down into the sump but the force of the PMUP turning on shot like a bullet out of the tube!

So back to the drawing board!

 

[SinCityRee4r]

what if you loop tubing up before you go down to require the pump to push water up? then the pmup siphon break which comes with the pump should work and break the siphon.

 

[GamerDadof4]

what if you loop tubing up before you go down to require the pump to push water up? then the pmup siphon break which comes with the pump should work and break the siphon.

The siphon break that comes with the kit is 1/4 coupling, my tubing is 3/8. So I made my own.

I have it 'sort of' working now. I have just pointed the hole in the siphon break down back into my water and made sure it is above the highest point of my float.

I have to have 1 on both my fresh and salt water cans and then one in my sump. Here's the one in my freshwater can, it points straight down and with the lid on, I didn't notice any spillage out.

For my sump I am thinking instead of drilling the coupling for a siphon break, just do a T into an elbow and direct the water into the sump a little more... Thoughts?