Aquahub DIY Top-it-Off Kit Premium

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Aquahub DIY Top-it-Off Kit Premium
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  • Aquahub DIY Top-it-Off Kit Premium
  • Aquahub DIY Top-it-Off Kit Premium Parts
  • Aquahub DIY Top-it-Off Kit Premium Float Switch Relay
  • Aquahub DIY Top-it-Off Kit Premium Box

Aquahub DIY Top-it-Off Kit Premium

89% Recommend this to a friend (32 of 36)

SKU: 202330

reg. $44.99

Special Price: $38.24

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Quick Overview

Build Your Own Auto Top Off System for your aquarium. Perfect for the DIY reefer who likes fun projects and wants to save a few dollars. Assembly requires only basic tools and no soldering. Basic knowledge of electrical wiring required.

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Full Details

Aquahub DIY Top-it-Off Kit Premium Kit includes:

  • (2) Aquahub i-float float switches
  • (1) 12V relay
  • (1) Relay Socket
  • (1) Package of Crimp Caps
  • (1) 9" Mold-a-Holder
  • (1) Do-it-yourself Slosh & Snail Guard
  • (1) Large Project Box
  • (1) 12V wall transformer

Warning: This project involves 120V electricity. Do not attempt if you are not comfortable working with basic electrical wiring. Aquahub cannot be held liable for injuries.


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Items 1 to 12 of 36 total

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  • Just what I needed! By Jason on 11/22/2015

    For about $30 more, you can purchase a JBJ ATO system if you won't want to go with a "do-it-yourself" option. I, however, wanted to customize the system to my needs. Here are some points to consider:

    1: can be setup several different ways, with a single switch, two switches, or three. This allows both an initial cutoff, a secondary cutoff in case the first float switch gets stuck in the 'on' position, as well as a switch that can flip if your reservoir is empty. The JBJ only allows two switches--this can run all three.

    2: I was able to splice additional wire lengths to customize the reach and fit. In general, I don't want the system right against the sump--I want the sensors to have a long reach into the tank and locate my system elsewhere. I can use a longer power cord as well. The mouldable mounting bracket allows you to setup specifically to your sumps needs.

    3: there is a 'click' when turning on and off, which several reviewers have mentioned. However, when in the project box (the case for the system), it is barely audible. This is, however, useful when testing your project to ensure it is triggering on and off properly.

    4: why not just splice a float switch onto your topoff pump power supply and be done with it? Because a) you will have a 120V line running through your tank that is not rated to handle it, and b) the float switches are not build to handle that current (or even close).

    5: by combining an RODI reservoir (in my case, a 5-gallon RODI bucket) with a float valve and auto-shutoff, as well as a pump of your choice (in my case, an aqualifter pump), I have never had to run extra buckets, turn my RODI off, or top my tank off again. Even when we're away for days, the water level stays perfectly even.

    6: I combined everything in (5) into a 12-gallon tupperware bin next to my tank. RODI in and water out are run through 1/4 ID rubber grommets. Pump and ATO are on a drainable shelf and all hooked to a surge protector that will trip if wet. It's well packed, clean, and runs well!
  • Good, Inexpensive Alternative By Geoff on 9/28/2015

    I've been running this ATO for about 6 months now. Haven't had any issues. The instructions are detailed and easy to follow. The one thing I would say you need to be aware of is the relay makes a loud clicking noise when it engages. Mine can be heard from several rooms away.
  • Save the money, DIY. By ChuckD on 6/30/2015

    Was a little hesitant about building my own ATO (actually considered selling the kit and buying a pre-made unit) but by the time I put it together I had read through the instructions so many times I had them memorized. Turned out to be a piece of cake.
    Only issue I fretted over was the height of the mold-a-holder as I wasn't sure where the water level would be on the float switch (just fyi: it's just about even with the bottom of the snail guard lid) but I left the extra material on, test fitted and re-heated and got it squared away.
    Definitely would buy this again if the need ever arises.
  • Good product By Justin on 6/10/2015

    So far so good. I've had this running for a little over a month now with no issue's.. vary good product for the money
  • Awesome ATO! By James on 12/21/2014

    I have had the same unit in service for 6 perfect years of service. I love the aquahub ato. I am building a second tank soon and will be getting another one of these.
  • Help for Greg on loud buzzing By on 10/27/2014

    The buzzing is probably caused by having a pump or other source of magnetic interference too close to the float switch. As the pump rotates, the magnet inside creates rapid waves of magnetic force which cause the reed switch to flutter and the relay to go on and off very rapidly which creates the annoying buzzing sound. Move the pump as far away from the float switch as possible, this should solve the problem. If the buzzing has already caused the relay to fail, write us at Aquahub and we will send you a new relay. Thanks

  • Overall good auto top off, but very loud and annoying! By Greg on 10/5/2014

    For the money the auto top off has worked good. but the unit is pretty loud as it turns on and off repeatedly.

    My tank is in our living room and its REALLY hard to ignore the continuous buzzing sound it makes every time the float switch makes the unit kick on. I wish there was a fix because at times it can be kicking on every few seconds
  • Great little kit By JR on 8/20/2014

    I put this kit together just a few days shy of going on vacation (yes, the ultimate test) and paired it up with a two gallon bucket of RODI and a tiny fountain pump. I am super happy at the results. My sump has yet to sway from the top off point and just like putting a model car together it was fun and gave you the options to really build your own design. Great and affordable kit.
  • Works Great and Cost Effective! By Shaun on 7/9/2014

    When I decided to finally add ATO to my sump (which I should have done a while ago looking back), I was looking for a simple and cost effective solution as I needed to keep to my budget for this upgrade. After considering all the options, and the price tags, this was the clear winner! Paired with a TOM Aqua Lifter pump, this has been a flawless solution. Easy to build using the provided instructions, I had it built and in operation within an hour. Molding the float mount took the longest but was simple though tedious. The components provided in the box seem of quality, but will be easily and economically replaceable if they become defective. This would not be possible with more commercial ATOs in most cases and I prefer self repair. Would definitely buy again if I had a need for a second one.
  • good system if it's done right. By The guy from Langley British Columbia. on 2/23/2014

    If you are electrically inclined there good and work well, The 12 volt part has to be carefully connected and crimped with a proper crimper for sound operation and connection to the relay. Other reviews I've read said they quit working and I think they have not made sound connections which on low voltage is very important, my background is in HVAC and controls so I know this is a very important point to make.
  • Works great, so far so good. By The guy from Langley British Columbia. on 2/23/2014

    I thought I would try this DIY auto top off kit. I have had other name brand ato's and not been very happy with them. So if your electrically inclined it's a snap to make up. I like the 2 float system for extra shut down safety redundancy. It works great so I'll get another for my frag system. All the parts are good quality as well.
  • Best value for the money By paul on 11/5/2013

    The kit took a little less than an hour to assemble. (The biggest tasts were drilling holes into the little bottle to keep the float switch free of snails/junk.

    The electronics were easy to screw and snap together. The relay also has a little diode (to tell you it's on, in case you don't hear the loud click) -- and I drilled another hole into the black hobby box and put clear silacone over it to make a window.

    But for $40 bucks, I've now bought 4 of these for my tanks. The float switch works fairly precisely. I rigged it to a cord with multiple outlets, so the top off tank gets a quick dose of calk from a sealed bottle when it turns on the top off pump. brilliant

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