Do a search for Psunami I've used one for years, it been foolproof, water level has to drop about an inch. I have it hooked to a maxi-jet in a 20gal rubbermaid can.

Do a search for Psunami I've used one for years, it been foolproof, water level has to drop about an inch. I have it hooked to a maxi-jet in a 20gal rubbermaid can.

I've also been using the Aquadevices float switch for about 2 years with
no problem. I'm using it in combination with a IKS Aquastar Vario
dosing pump:

http://www.iks-usa.com/pumps-vario.html

Which is expensive, but pumps slowly, and uses a very high quality
rubber tube/roller system.

One small warning, if mounting the float switch in the main tank (which
I do) or in a sump with snails, make sure the float switch is far enough
away from the tank walls so that snails won't jump onto it (causing the
float to stay down, causing the tank to overflow). Since snails can
piggyback on each other, you really need 2-3 times the distance of the
biggest snails in your tank.

Also, I purchased metal brackets, super-strength double sided sticky
tape, and plastic ties at Radio Shack which I've used to mount the float
sensor. See here for a picture of my old setup:

http://www.benslade.com/pictures/200...lveReduced.jpg

Ben in DC

(append 030516 to the subj to bypass spam filters)
"It's the mark of an educated mind to be moved by statistics"
Oscar Wilde


BSackamano wrote:
I've been using this one for nearly 2 years with no problems:

http://www.aquadevices.50megs.com/order1.htm


"Timothy Tom" wrote in message
om...

I know that I have seen an online retailer who sells water level
controlled switches which consist of a tube-like sensor which sits in
the sump which is connected via airline tubing to a switching module
in which you can plug a pump. Does anyone know where to find such
switches. P.S. I know that there are electric level sensors, but I
need the one using airline tubing between the sensor and the switching
module.

Here is one I'm interested in.
http://www.aquariumpros.com/Merchant...gory_Code=ATto

My 125 gal lost over 6 gal of water in just 4 days while the house was
closed up and I was away on vacation. Ruined my pump.

Rick

Soectapure LLC is exacrlt what you asked for
"Timothy Tom" wrote in message
om...
I know that I have seen an online retailer who sells water level
controlled switches which consist of a tube-like sensor which sits in
the sump which is connected via airline tubing to a switching module
in which you can plug a pump. Does anyone know where to find such
switches. P.S. I know that there are electric level sensors, but I
need the one using airline tubing between the sensor and the switching
module.

(Timothy Tom) wrote in message . com...
I know that I have seen an online retailer who sells water level
controlled switches which consist of a tube-like sensor which sits in
the sump which is connected via airline tubing to a switching module
in which you can plug a pump. Does anyone know where to find such
switches. P.S. I know that there are electric level sensors, but I
need the one using airline tubing between the sensor and the switching
module.

I'm weary of the mechanical float switches for some reason. Honeywell
makes a solid state liquid level sensor that is pretty simple to use.
I plan to make my own top-off system using one. The sensor is a bit
expensive, but the rest of the parts are cheap and easy to come by.

The details of the sensor can be found he

http://content.honeywell.com/sensing...o/liquidlevel/

Regards,

Dave.

The Tsunami has the round air pressure sensor and airline tubing you are talking about. Mine has worked perfectly for 4 years, it was cheap and there is nothing to clean.
Brian