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arrowheadpuffer · 12/19/2009, 04:20 PM

If I am not hooking the RO/DI up to the tank and just using a 10-32g trash can, can I just use a drip valve? Is there any reason I would need a float switch? I will be mixing kalk for the top off.

swannyson7 · 12/19/2009, 04:50 PM

You should use a float valve instead because a drip valve will hurt the efficiency of your Ro/DI. Plus if you leave home for an extended period and forget to shut it off, it still has the possibility of overlfowing with a drip valve (even though it would take a long time).

bertoni · 12/19/2009, 04:50 PM

I wouldn't trust any physical float valve or the like for a tank. They fail far too frequently. I used a dual float switch with a peristaltic pump that was turned down to a very low flow.

arrowheadpuffer · 12/19/2009, 05:18 PM

Quote:

Originally Posted by swannyson7

You should use a float valve instead because a drip valve will hurt the efficiency of your Ro/DI. Plus if you leave home for an extended period and forget to shut it off, it still has the possibility of overlfowing with a drip valve (even though it would take a long time).

thanks, but I am NOT hooking the RO/DI up to the tank.

I am simply putting a 10-32g trash can above the water line and dripping it into the tank, I have done this for years with my 2.5g container and wondering if it would be an issue with a larger container.

sheac12 · 12/19/2009, 05:57 PM

Quote:

Originally Posted by bertoni

I wouldn't trust any physical float valve or the like for a tank. They fail far too frequently. I used a dual float switch with a peristaltic pump that was turned down to a very low flow.

Sorry to hijack this, but why dont you trust a physical float valve? I was planing on using one in my 50gal saltmixer/fresh water top off system.

R_Hudson · 12/19/2009, 06:10 PM

I use a diy contraption with a 2 gallon resiorvoir. Works great with no issues other that topping off the top off every other day. Just because I'm too lazy to run a water line

bertoni · 12/19/2009, 07:25 PM

Physical float valves can get stuck open, especially when the limewater starts precipitating inside them. I've just seen too many pictures of the results. I don't even trust a single float switch.

12/19/2009, 04:20 PM	#1
arrowheadpuffer Registered Member Join Date: Oct 2009 Location: CA Posts: 396	Auto Top Off If I am not hooking the RO/DI up to the tank and just using a 10-32g trash can, can I just use a drip valve? Is there any reason I would need a float switch? I will be mixing kalk for the top off. __________________ -arrowhead Current Tank Info: 90g

12/19/2009, 04:50 PM	#3
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	I wouldn't trust any physical float valve or the like for a tank. They fail far too frequently. I used a dual float switch with a peristaltic pump that was turned down to a very low flow. __________________ Jonathan Bertoni

12/19/2009, 07:25 PM	#7
bertoni RC Mod Join Date: Mar 2002 Location: Mountain View, CA, USA Posts: 88,616	Physical float valves can get stuck open, especially when the limewater starts precipitating inside them. I've just seen too many pictures of the results. I don't even trust a single float switch. __________________ Jonathan Bertoni

12/19/2009, 04:50 PM	#2
swannyson7 Registered Member Join Date: Aug 2004 Location: Bantam, Connecticut Posts: 2,398	You should use a float valve instead because a drip valve will hurt the efficiency of your Ro/DI. Plus if you leave home for an extended period and forget to shut it off, it still has the possibility of overlfowing with a drip valve (even though it would take a long time).

12/19/2009, 06:10 PM	#6
R_Hudson Just having fun Join Date: Oct 2006 Location: Tulsa, Ok. Posts: 990	I use a diy contraption with a 2 gallon resiorvoir. Works great with no issues other that topping off the top off every other day. Just because I'm too lazy to run a water line