I shut down /consolidated another one of my tanks so I will no longer need this Tunze ATO. Bought this brand new beginning of this year so this unit is prob about 6 months old. Everything works great super quiet.
This model has 2 sensors, the 2nd is a safety sensor to prevent overflow.
$125...
Tunze Osmolator 3155 Water Level Controller (ATO) - SOLD
Brand new in box, never used
Willing to ship at buyers expense
Located in Milwaukee, WI
https://www.bulkreefsupply.com/tunze-osmolator-universal-3155-auto-top-off.html
I have a Tunze 3155 ATO that runs for 25 seconds every time it turns back on, regardless of the water level. Is that normal?
It seems really excessive and in combination with my Avast k1 kalk stirrer, it's dumping too much RO water into the tank on a daily basis. I turn the return pump and ATO...
A number of brand new/used items for a setup that never made it up and running. Prices below include shipping.
Located in STL if interested in tank and/or local pickup
Tunze 3155 (new in box) - $150 shipped
BRS 5-stage premium RODI (new in box) - $200 shipped
Maxspect jump gyre MJ-GF2K (new in...
Used Tunze Osmolator 3155 ATO. Works but selling cheap because the pump is LOUD. Like, twice as loud as it should be. You can use as-is or buy a new pump for, like, $30-40.
Otherwise, works fine. Comes with everything pictured. Located in Tampa, FL, will ship US only. Paypal G&S please.
$115...
I have a few used equipments for sale. They’re all in working condition. Would prefer local pickup in Brooklyn or meet up on Manhattan, but if they don’t sell within a week, I’ll start shipping (feel free to pm, so I will keep you on the list). Price below is for pick up.
1. Xr15 Gen5, blue...
Hello,
I am looking to sell a used Tunze Osmolator 3155 ATO (Automatic Top Off) unit.
No holds
First come, first served
Cash or PayPal Accepted
All Sales are Final
Message me if interested.
Thank you
Marc
Tunze Osmolator 3155 ATO Works great, I just took it offline tonight, that’s why my pics are blue. I’m only selling it because I went on a 2-week vacation and setup 3x ATO’s. The pump is only 2-months old, I replaced it right before going on vacation. I purchased the Osmolator new a few years...
Hello everyone , I connected everything exactly according to the manual. The optical sensor is almost half submerged in the water, it is definitely 1 cm below the water surface. Mechanical sensor on a separate magnet, above. I turn on the osmolator and what ... all the LEDs light up as it...
I have a Tunze Osmolator 3155 ATO. Everything works as it should, just needs a good cleaning on the wet side magnet. I used this for about 1.5 yr until I recently took my tank down. It does come with a mount for the controller unit.
The only issue is where the hose connects to the pump, the...
I want to add this ATO to my sump but I don't think the supplied tubing is going to be quite long enough. I need to go roughly 12' and the head height is only about 3'. Do you think I could add roughly 3 more feet to this system without having to use a larger pump?
Hi all this is a complete package tank is 1 year old does not include the corals or LED but does include the APS aluminium stand that opens front and sides, a trigger 26 sump, Reef Octopus Varios 2 DC pump, Tunze top off, Trigger 5 gallon top off container and all plumbing also includes live...
Tunze Osmolator 3155 Auto Top Off - almost all components completely new
The optical sensor on my own unit failed after ~1 month of use right before a vacation, so I purchased a second unit, nabbed the 5017 controlled from the new box and later had the failed controller refurbished by Tunze...
I have 1 good condition Tunze ato with brand new pump . Everything works perfect. 165 shipped its 230 on brs new. . Also have 1 heater controller for 30 brs price 50 . Both for 185 shipped .
I have own a few tanks in my life but 4 years ago I gave it all up. This past year my daughter was gifted a IM Fusion 15g AIO tank.
Build Specs:
IM Fusion 15 AIO
AI Prime HD16
Jager 50w Heater
Tunze ATO
AquaRocks Scape
Kraken Reef Lid
10lbs Pink Fiji Sand
More pics and progress to come...