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d0ughb0y
08/17/2017, 05:54 PM
What size tubing hose do I use for tunze ato pump?

I tried the hose for RODI and it seems loose. it pumps water and all, but I don't like it being loose as it may come off and the pump will make a water fountain in the sump.

also, do you really need to prime/purge the air out of the pump before it starts pumping water? I had to completely submerge it to let all the air out then insert the tubing under water to get it to pump water. If I insert the tubing out of the water and then submerge the pump, it does not pump any water.

thanks

reefwiser
08/17/2017, 06:20 PM
It's a metric size 7mm
https://www.championlighting.com/product.php?productid=38254&cat=1115&page=1


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d0ughb0y
08/17/2017, 07:47 PM
thanks.

rvitko
08/18/2017, 08:42 AM
Yes, while the tubing is not proprietary it is metric so hard to find in the US, it is 4mm ID, 7mm OD.

The pump can get airlocked and will tend to be anytime it is transferred or ran dry, tipping it upside down while submerged to release any air is the best way to resolve this.

d0ughb0y
08/18/2017, 09:19 AM
thanks