- JBJ A.T.O. Water Level Controller
Why does BRS recommend this?
One of the most popular ATO systems available. The JBJ A.T.O system is by far the most cost-effective way of utilizing a safe and consistent auto top off system. With multiple configurations, the JBJ A.T.O will fit almost anyone’s needs. With linkable brackets adjust and secure float switches, you will need to add your pump of choice, the JBJ ATO system is a great top off unit for reefers on a budget.
- Audible Alert
- Adjustable timer based Safety
- Multiple configurations
- Visual LED signals
- Includes float switches and brackets
The A.T.O. is equipped with (2) float sensors that activate within seconds when your water level drops and automatically refills your sump or tank until it reaches your desired set point. Each float sensor has been designed with an exterior guard preventing snails & hermit crabs from attaching to the sensors.
Electronic Controller Module
Our state-of-the-art electronic controller allows for (2) modes of operation with a total of (3) different set up scenarios, allowing you more choices for installation for your unique set up. Our compact controller also incorporates a visible L.E.D. panel and an Audible Signal alerts when in operation mode.
The kit includes commercial grade "Linkable Brackets" that can easily be adjusted to meet your height requirements, and securely positions your float sensors. No suction cups to lead to disastrous water spillage.
Pump Safety Protection
The A.T.O. automatically stops power to your return pump in your reservoir, in the event that your reservoir is low on water. This safety feature prevents pumps from running dry and failing. (Mode A- Example 1)
Note: No pump included. The pump will need to be able to refill the amount of evaporated water in just a couple of minutes. BRS suggest purchasing a pump that is just slightly larger and placing a ball valve to control the overall amount of flow. We suggest looking into the Sicce Syncra Silent line of pumps or the BRS 50 mL top off pump.
Started using in 2005 still running By William on 5/12/2019William would recommend this product to a friendI have used this on three different aquariums. Started with a 55g in 2005 and now it’s in its second 125g setup. I use both floats in parallel in my refugium return pump chamber. I clean the floats and test them about once a month. I have the pump timer set to the shortest time as a safety measure. Water level never fluctuates.
MAJOR defect could happen to you with this product By Travis on 3/3/2019Travis wouldn't recommend this product to a friendI have 4 of these controllers and have had them for 1.5 years. One of them will occasionally get stuck ON after the float switch calls for water. I'll know because all the sudden when I am doing a water change (i use the ATO to refill it..) I will have water all over the floor. I'll run and check the ATO and it doesnt say that the pump is on...even though I can see that the pump is pumping water in (not just a siphon.. but full on high flow water because of the pump I use). If I unplug the power to the ATO then it stops.
This is the exact same problem that a user named "Allen" spoke about. He said: "hen the sensor tells the controller to turn off the pump the LEDs go out signalling that the pump is off, but IT ISN'T. The pump outlet continues to be energized even when the controller is saying it isn't"
This has happened at least 4 or 5 times to me. FOrtunately my tanks are in my garage so it wasn't a total disaster. Still now I need to find a new ATO.
Failed after a few month By Steve on 1/31/2019Steve wouldn't recommend this product to a friendWorked great...then it just stopped. Cannot find cause
Only Ato I have owned By Sean on 1/17/2019Sean would recommend this product to a friendI’d recommend this product, I have had this same ato for over 8 years. Mine has never malfunction. These people complaining that it gets stuck open or closed, learn to clean your equipment.
Quit working after only a few months of use. By Allen on 12/11/2018Allen wouldn't recommend this product to a friendI bought the ATO a few years ago and I had barely started using it when I had to take the tank down for a move. Recently I set it up on my QT. It worked as it should initially but after just a couple of months it malfunctioned. When the sensor tells the controller to turn off the pump the LEDs go out signalling that the pump is off, but IT ISN'T. The pump outlet continues to be energized even when the controller is saying it isn't. Needless to say this renders it useless. JBJ's response: "buy a new controller".
I understand it is beyond the warranty period but a well-made device won't fail after just a few months of use. I will definitely never buy another.
JBJ ATO Controller By Chris on 5/15/2018Chris would recommend this product to a friendFor the price you can’t beat it. Does exactly what you need it to do had no issues with setup or use.
Works just like is supposed to. By Scott on 5/2/2018Scott would recommend this product to a friendI purchased this to maintain the RO/DI level in my water holding tank. I really like the extensions because they allowed me to run it in mode B and were long enough to have the Sensor A at the top and Sensor B 30 inches down. I like that fact that I can use any pump with it!
works good By justin on 4/10/2018justin would recommend this product to a friendworks as expected
Long lasting easy hook up By richard on 10/16/2017richard would recommend this product to a friendI've had mine 7 years never any issues as long as you do periodic maintenance on the float switches nothing a vinegar bath can't handle :)
Is the adjustment worth it? By GoneFishingAgain on 10/10/2017GoneFishingAgain wouldn't recommend this product to a friendIt is quite reliable if you use the right mode. Many do a traditional top off from spare may find it occasionally fail because people fail to clean the tank (and the float switch). But after all the tedious maintenance why not just buy a reliable timer, or a wifi remote control plug just simply connect to the pump in the spare water tank? Let it run a minute every day. If it may pump too much water in just one minute, add a control valve. Evaporation is constant almost everyday. Sometimes technology is good, but ATO is simply too clumsy to maintain.
Very reliable By Bakerrichard27 on 9/1/2017Bakerrichard27 would recommend this product to a friendI've had this unit since 2011 as long as you perform quarterly maintenance on the floats it works flawless and is extremely reliable
Not trustworthy = not a good investment By Sawyer on 6/18/2017Sawyer wouldn't recommend this product to a friendI have had this JBJ ATO running on my tank for just around a year now and there are two main problems with it.
First, the float switches get gunked up easily which causes them to stick in position, this makes it where the pump will either continue to run until the ATO auto shut turns it off, or the ATO won't turn on because the switch is stuck up.
This problem leads into the second one, which is the auto shutoff timer should be more flexible. I have turned it to the longest time but even then half the time it only runs for a minute and then will activate the timer. It isn't reliable and here recently there have been several times when, luckily, I have caught my water level dipping very low.
Overall I would suggest forking over the extra money for a system that is more reliable and doesn't have these design flaws.
Are we able to order the system with different voltage 240v - 50 Hz?
We do not have voltages other than standard North American. Unfortunately our products are intended for use in the US and Canada only. Feel free to let us know if you have any further questions.
I have a pressure RO feed directly to my tank and my old float valve ATO is worn out. Can this unit be paired up with a solenoid RO controller? If so, which would you recommend?
This will have a single outlet which a pump or possible water solenoid could be attached to. We do not currently have an option for water solenoid however if you find one option with an outlet control this controller can turn it on and off. Feel free to let us know if you have any further questions!
I have a ATO Auto topper and when it shuts off my pump keeps siphoning water into the sump. Any help would be appreciated
It sounds like the ATO discharge hose is positioned lower than the water level in your ATO reservoir which creates a siphon after the pump has been powered off. To fix this, you just need to raise the end of the ATO tube higher. For some reefers, it's easier to mount it on the very top of the sump or even up to the top of the display. :)
What is the factory preset internal timer set for? Thanks!
The max on time for the unit will be 14 minutes. Feel free to let us know if you have any further questions!
My unit pumps as soon as power is applied. Like after a power outage. Is there a way to stop this. It pumps for a good 5 seconds until it seems to find itself and the sensors.
We are not aware of this feature being able to be turned off. You may want to contact the manufacturer to see if there is any adjustments. Feel free to let us know if you have any further questions!
What's the recommended pump for the ATO JBJ? thanks!
Really just about anything will work in terms of the ATO itself, its more about how far and fast you need to pump water. The most common pump is the aqualifter pump which pumps slowly and only goes a couple of feet. Otherwise if you need to pump larger distances you could use something like the 50ml top off doser.
Why do i still get drips of water out of my discharge hose non stop even after the vaccum pump has shut off the.
The vacuum pump is on the bracket at the top of the tank at lease 3 ft. higher then my R/O holding tank(no pump in here for the A.T.O.
Is the water in your storage container higher off the floor then the water in your sump? If so that would create a siphon when the pump turns on and water would continue to pass to the tank after it turns off (regardless of where pump itself is located).
What kind of pump is recommended for this system thanks
Any low flow pump will work with this ATO. I ave personally used our 50ml/min dosing pump but find that it had trouble keeping up with large systems. I moved to the Auqa Gadget HydroFill ATO Pump due to the fact that it can be run dry without any problems, its self priming and it won't back siphon.
Another great option would be a small submersible pump like the eheim 300 or sicce micra and micraplus
Keep in mind these pumps are rated for low head heights so if you are running the ATO hose from the ground to the top of your tank you will need to go a little bigger.
I hope this helps!
Have a great day :)