Auto Water Change

Waters · Jul 1, 2022

ROBERT35 said:
I also use the Neptune dose. As mentioned it does take a long time. I change out 2 gallons per day and it takes 2 hours. My big question is where to pull water from and where to return it. Right now I'm pulling from my skimmer area and returning it to my return pump area. The dose pumps are set to do this at the same time. Seems like you would be eventually pulling out the same water you're returning. Does that make sense???

The chance of you pulling out the same water you are changing is incredibly small.....you have water moving through your sump at all times. Somebody did an experiment with this (BRS maybe?) which proved this. I also pull from my skimmer section and return to my return pump section.

ROBERT35 · Jul 1, 2022

Waters said:
The chance of you pulling out the same water you are changing is incredibly small.....you have water moving through your sump at all times. Somebody did an experiment with this (BRS maybe?) which proved this. I also pull from my skimmer section and return to my return pump section.

Thanks. Just wanted to make sure I was doing it correctly.

Joe31415 · Jul 1, 2022

SilverBulletPRN said:
Same, looks like the versa pumps would work great, but it's so hard to find them in stock. Next up is the X2SR but it seems like people hate the interface of the app.

The trick to getting Versa pumps is to find them on BRS (and other sites) and hit the button to have them notify you when they're in stock. When you get that email get to a computer and buy them ASAP. That's how I got mine. The time between getting the email and checking out was less than 90 seconds and they were sold out a few minutes later.

jsker · Jul 1, 2022

I have been using the GHL Maxi for my AWC over three days. Very quiet, I use the My GHL app for settings. Works great. Did I say the Maxi is quiet?

Daniel@R2R · Jul 1, 2022

I use the AutoAqua Smart AWC DUO. I have 2 of these units. Great system IMO.

Bada Bing · Jul 4, 2022

Waters said:
I also use the Neptune Dos.....yes, you need to use the Apex controller. I use two of them....one to dos ALK/Ca and one to do AWCs throughout the week.

Exactly what I do for a WB X90. One to supply Kalk stirrer and Soda Ash, the other for AWC of 4L per day. No need for fast if you do daily water changes.

blstravler · Jul 4, 2022

I use 2 Versa’s and change a 1/2 gallon everyday - sometimes I go up to a gallon. I use Tropic Marin pro and smaller amounts lessen the impact of the ALK and CAL difference. As others have said they are very quite.

Mikey-D · Aug 31, 2022

I am not anywhere near this process but it is something I have on the next phase list of things to master. When it comes to pulling from the mixed station does anyone have issues with salt drying up in the dosing lines and becoming an issue overtime. Maintenance wise do you have to add flushing lines once a week or so to the chore list?

Gtinnel · Aug 31, 2022

Mikey-D said:
I am not anywhere near this process but it is something I have on the next phase list of things to master. When it comes to pulling from the mixed station does anyone have issues with salt drying up in the dosing lines and becoming an issue overtime. Maintenance wise do you have to add flushing lines once a week or so to the chore list?

I have been running my AWC for about 2 years now and the lines have never needed rinsed out. I use reef crystals salt which causes a brown sludge in my mixing container and I’ve always wondered if it will eventually build up in my lines, but so far so good on mine.