Auto Top Up Failed Again :(

[martinmcnally]

Originally Posted by Reef Pilot

I use a double float set-up similar to this.
http://autotopoff.com/products/DS1/
I actually have it right out of the water in my sump, and only use it as a secondary (and third) safeguard in case my primary float (which regulates sump level and fed by my RO/DI) fails. The primary float feed only comes on for 5 min every 6 hours via a solenoid that is connected to my Apex. If power is off, solenoid is off. The power goes through the double switch controller, and will cut power if the 2nd or 3rd float is activated.
http://autotopoff.com/Solenoids/
The double float switch will not allow power to the solenoid.

Might be a little overkill, as even my primary float has never failed. But it does give me good peace of mind.

And the whole set-up costs way less than a Tunze or most other ATOs.

HA! That's the system I used to have. I should have stuck with it!

[Dearth]

I have a second hand JBJ auto top off with controller and 2 floats and a cheap pump (can't remember brand atm) been working awesome for over a year and half with no issues

[Ron99]

Originally Posted by martinmcnally

HA! That's the system I used to have. I should have stuck with it!

Me too. Been using the autotopoff.com unit for many years without problem coupled to an aqualifter pump. It's fairly bulletproof.

[dino]

I use a gravity feed from a bucket. System Cost 15.00 and has never failed

[mark]

10 years with a furnace humidifier float valve in the sump connected to the rodi. not a single problem.

[Tom R]

I have used 2 Kent Float Valves for 14 years with no problems.

I uses 1 Kent Float Valve from my RODI to a 45 gal drum and a second Fent Float Valve from the 45 gal drum to my sump.

The water storage tank can be any size. I use a 45 gal drum,

Tom R

[The Guy]

using the Tunzie 3155 ato system, so far it works very well. I like the gravity system best but my wife has a problem with a five gallon pail on top of a 6' step ladder in the living room. LOL!

[mike31154]

Ugly but fairly simple. Many, many years of trouble free operation. A variation of the mechanical float valve, gravity feed method. I don't have sump or room to mount a container above my display, so use a glass carboy pressurized by an air pump on a timer to feed a mechanical float valve in the display. I shortened the valve by a couple of chambers to reduce the footprint in the tank. I think after 5 or 6 years, I may finally need to replace the float valve. The rubber seal that closes the opening in the feed line when the valve is up has finally hardened to the point where it no longer provides a complete seal. Should be about $10 at the local hardware store.

What I find good about this set up is that everything happens rather slowly & even if something goes wrong, there's generally no disaster in the form of a flood. The fresh water is limited to the 7 gallons in the carboy and the air pump keeps just enough air pressure in there to feed the tank with a trickle when the level drops to open the mechanical valve. It gives me about 7 days of ATO.