- AWC Auto Water Changer (Plus ATO) - AutoAqua
Auto Water Change Plus Auto Top Off
Change your reef tank's water automatically with AutoAqua's AWC system. AWC & ATO All-In-One. Water changes are one of the most time-consuming maintenance tasks with saltwater aquariums. There has been plenty of debate over how much water you should change and whether it should be weekly or bi-weekly, but no one argues against daily water changes. Changing 2% of your water every day will greatly increase your tanks stability and potential for longevity.
- Includes pumps & tubing
- Optical sensors = no moving parts
- Secure tube holders
- Siphon breaks
The simple system uses dual optical sensors, one for a high water level and another for a low water level. The high water level sensor acts as the ATO sensor, knowing when to refill your saltwater tank, from the freshwater reservoir. The top sensor also lets the AWC Touch controller know when to stop refilling the tank after a water change has occurred. The low water sensor acts as the minimum water level when a water change is in progress. During the water change, the output pump will pump water out of your tank our sump into a wastewater reservoir, or floor drain until the low water sensor is activated, telling the controller to turn on the input pump until the high water sensor is tripped, completing the water change and then reverting to a top off controller.
It is important to make sure the optical sensors are placed in the same chamber (usually the return chamber) where the water level will fluctuate during a water change.
DC Pump Max Head - 6.5 feet
Flow Rate - 74GPH
Optical Sensor In-Tank Thickness - 0.53"
Optical Sensor Diameter - 0.78"
Magnet Thickness - 0.25"
Max Tank Thickness - 0.5"
Controller Dimensions - 3.75" H x 0.6" W x 2.25" L
Sensor Cable Length - 10 feet
Pump Cable Length - 6 feet
1x Smart AWC Touch Controller
3x DC Pumps
3x Siphon Breaks
6M Water Tubing
3x Tube Holders
1x Power Supply
It is alright By James on 8/2/2019James would recommend this product to a friendFirst one had a bad pump. Second one was fine. The only real issue so far is that the ATO function turns off if you loose power. You have to turn it back on. You’ll need to put it on a battery backup if your power is flaky like summer in FL with all the thunderstorms.
Great design with many safety features. By Alex on 6/1/2019Alex would recommend this product to a friendAfter using this for over 3 months I can say this is a great product. You are able to do both water changes and auto top offs. For auto, top offs it will only run the pump for a certain time and if that time is surpassed than it will stop the pump and sound a very annoying alarm. For water changes, the pump surprised me and pump pushed water to my drain 25 feet away. But had to have a container of saltwater closer to the tank for filling the tank back up. Have had no problem so far and the directions are very easy to read! All in all, this is a product you need if you don't have an auto top off and/or going on vacation for a long time.
#1 reefer tool By Jonathon on 5/31/2019Jonathon would recommend this product to a friendEasy to set up, little pumps are strong, and quite accurate. Good bye buckets and siphons!
4 Faulty Units By Brandon on 4/17/2019Brandon wouldn't recommend this product to a friendI'm not one to leave a scathing review due to getting a faulty unit of any type of equipment – it happens. But 4 faulty units??
I had port 3 fail on the first unit. This is the port that powers the auto topoff. The brain would turn it on, but a volt meter showed that it wasn't being powered when the screen showed it coming on. After contacting Auto Aqua, then CoralVue, they sent me a replacement. The 2nd and third did the same exact thing. Port 3 failure. I just went along with the process because I liked the way it integrated in my system as an ATO and AWC all in one. And they were replacing them for free each time.
The 4th unit failed on port 3, but this time it failed ON. So the stupid thing pulled the entire volume of my topoff reservoir and dumped it into my tank. 20 gallons. Probably 12-15 gallons of overflow onto my floor.
Surprising, as I've searched all over and have seen nobody else mention this anywhere. CoralVue told me they were aware of an issue but unaware of a fix coming. Not sure how this isn't happening to a lot of other people since it happened to me 4 times.
Stupid of me to keep testing my luck. I won't buy another AutoAqua product. I really wanted this one to work.
works great so far after 2 months running. By brandon on 3/7/2019brandon would recommend this product to a friendThis has worked great for my system I have about a 400g system, I have it doing 5gal water changes every other day and I evaporate about 2 gal a day. Out of the box two of the pumps were stuck but a little tap on them to free them and they have worked ever since. The built in safety features are great as well. I mounted the pump high enough in my sump so it will never take to much water out. Highly recommend this product if you are looking to automate your system.
Worked well for a while By Al on 12/24/2018Al would recommend this product to a friendAfter installing it I had it doing manual water changes and auto top offs for about 3 months. Then during a water change it took way more (about 4x) of the water from my sump and the small pump to put in the new salt water stopped working. ATO is still working well but I'd like to know if there's a warranty. As long as it works, I love it.
Works as advertised By Rhett on 10/22/2018Rhett would recommend this product to a friendI love this thing.... I have a frag tank and a Nano in my office. I no longer have to carry water and I can do multiple small water changes every week. Has cut down maintenance time dramatically.
Worth Every Penny By Robert on 10/7/2018Robert would recommend this product to a friendI suck at maintenance, especially water changes. My system is 130 gallons total. I was doing a 40 gallon water change once every 6-8 weeks and relying on my 2-part rig to keep the levels right between them. I'll spare you the gory details and just say LPS and the fish are doing well. Everything else has perished. The tank is 4 years old. I needed to do something new. I needed to automate my water changes. If only there was a product that could make use of the 55 gallon drum of sea water i keep next to the sump in the utility room behind the tank. Then the SMART AWC comes on the market. I'm already running another ATO and can't find any reviews for the SMART. I wait. Then the ATO fails, for the second time.I come home to level alarms. The return pump is pushing air. It was time to place a bet on the SMART AWC. I am so glad I did. I ordered the supplemental servo valve to take the place of pump 1 and perform the ATO function since I have a gravity fed 55 gallon drum of RODI water. I also ordered the float valve BRS suggested. Once I had a few NPT to push to connect adapters, it was off to the races. Total install time, 1 hour. I drilled the glass sump and mounted the float valve first. That took the longest time. The plumbing was all just cut to length and shove together, easy. Programming was so easy and intuitive. The screen is bright and clearly indicates the settings. I manually ran a water change to check the function and timing. With 2 feet of static head to overcome for both pumps, it took about 3 minutes to change 1.5 gallons of water. I set it for 1 water change per day and checked the salinity in the sea water tank. We are off and running. I'll have to watch my 2-part system over the next few days to ensure I don't overdrive the hardness or calcium and adjust dosing accordingly. That's the only unfortunate thing. The SMART AWC makes me long fr a SMART CA doser and a SMART dKH doser. Everythign should be this easy.
Setup: 5 Stars
Programming: 5 Stars
Design: 5 Stars
Price: 5 Stars
Function: 5 Stars
Buy this thing now and save yourself so much time and hassle.
Satisfied so far By Matthew on 9/17/2018Matthew would recommend this product to a friendI purchased the Smart AWC to use on my 25 Gallon tank, and for the past few weeks it has worked like a charm. I have it set to replace 1/3 gallon every 12 hours. That works out to changing out about one 5 gallon container of SW per week that way. I had been using AutoAqua's Smart ATO Micro for top-off previously, and had been very happy with it. I never really had to think about it except when it beeped to let me know I was out of RO/DI water. Hopefully I will get the same reliability out of the AWC. They both use the same little pumps, so I was able to plug the pump from my ATO reservoir right into the AWC, and save one of the pumps that come with the AWC as a spare, which is handy to have on hand.
Bad out of the box By Eli Smoke on 9/5/2018Eli Smoke would recommend this product to a friendThe first one I received the ato output was dead. Worked once, that was it. I had 11.59vdc out of the pump 2 and pump 3 outputs, zero volts out of pump 1.
After emailing autoaqua for a week she got me in touch with coralvue their US distributor. After emailing them a few times she sent me a new unit. The ato has been running for a few days and I am manualling doing water changes with it because I want to test it before I fully implement it.
The pumps are weak if you are trying to move water more than 5 feet forget it.
5 stars because it has already made life easier. I would recommend this to anybody who wanted to combine their ato with an awc.
Perfect so far..... By Reefer Rob on 7/8/2018Reefer Rob would recommend this product to a friendAfter experiencing 2 failures at 18 months with a cheaper temputure based unit, I decided to spend a little more and invest some time. Turns out this was so easy to install and very affordable. Drilling the sump for the backup float switch took the longest time at 15 minutes. Thanks for the advice BRS. After that was done, the two level sensors went in and I mounted the controller to the panel. It is perfectly small and fits in only 4 inches of space. My system is gravity fed. So, I ordered the solenoid valve and adjusted the plumbing a little. It plugged right in in place of the pump and works perfectly. It holds back the 4 feet of static head pressure from my DI drum. The system thinks it is a pump and opens it when needed. I hope to get the water changes going soon. Might post another review after that. For now, I’ll say this is an excellent product. Brilliant design, easy, intuitive, simple and effective. It might be appropriate to call it the iPhone of the ATO options.
Perfect! By Ace on 6/15/2018Ace would recommend this product to a friendAwesome and easy!
Can this unit pump the fresh water in before pumping water out? otherwise the return pump chamber in my sump would run dry.
It will only take water in/out simultaneously. Doing them at the same time assures that the water level will stay the same.
Can you program this system to do daily water changes of xx amount at X time or do you have to manually start the water change with the push of a button
The AutoAqua AWC can do both scheduled water changes as well as an on demand water change at the push of a button.
Have a great day.