Auto water changes have begun

[Frank]

I thought I would post this in the general for all that didn’t see the auto water change post in equipment. Thanks a lot to Impur he did a lot of research and found a great dual head pump that pulls exactly what it pushes. So I have this hooked up to due 1.5 gallons a day so should do 45 gallons a month I might increases at a later date. So far it is one of best things I have done.

[DennisW]

That looks expensive.

 

Dennis

[reefnjunkie]

That looks expensive.

 

Dennis

 

+1 on that-I'll need to swing by and see this bad boy working in person

 

Nice Frank

[Emerald525]

That looks expensive.

 

Dennis

 

Not when you figure what Beth charges me in corals to do the same job!(laugh) Very nice setup Frank. I will be tagging along to see how it works for you!

[Topher]

i would use salt water not the sake.(yellow tag under pump) or is that your secret grow fast for your coral. (laugh)

[Frank]

The pump with one head was 70.00 and the other head was 32 the tubing was 20 so I'm into the hole thing about 150. Come on over brad it works great.

[Trautman]

this looks great! i love the idea

[Barelycuda]

Where did you get it Frank?? One of those would be perfect for larval water changes.

[Frank]

Got it off ebay its a masterflex pump the guy was asking 170 for it but I offered 75 and he said yes,,,, just have to keep your eye out...

[jackaninny]

Just for reference here is the previous thread - http://www.pnwmas.org/forums//showthread.php?t=22110

[Mr S]

So will you make a 45 gal batch of water and just let it cycle through or make a batch of salt water every once in a while. If you do a large batch do you have to worry about evaporation changing the salinity of the water?

[drock59]

Shouldnt be too much evaporation if there is a good lid on the container eh?

[Frank]

I have two 55 gallon barrels so I will make of 55 at a time. I will make up 55 at a time. The evaporation shouldn't be bad never has been in the past.

[stylaster]

this will be great, do you think that with enough turnover you can get rid of having to dose or run calcium reactor?

[Frank]

Need so help to check my math.. here is the head that I’m running

http://www.coleparmer.com/catalog/product_view.asp?sku=0701620&pfx=WU

It does 0.8 mL/min(at 1 rpm) the pump I’m running is at 100 so I’m doing 80Ml/min so for a gallon I want to run just over 45 min right and for 3 gallons 90min correct? There are 3785 mL in a gallon.

[grassi]

Need so help to check my math.. here is the head that I’m running

http://www.coleparmer.com/catalog/product_view.asp?sku=0701620&pfx=WU

It does 0.8 mL/min(at 1 rpm) the pump I’m running is at 100 so I’m doing 80Ml/min so for a gallon I want to run just over 45 min right and for 3 gallons 90min correct? There are 3785 mL in a gallon.

 

Just think in liters lol

Seems good to me. Better if you test it anyway

 

As for running it without dosing with a reactor or pump, you should boost the sw with ca, alk and mg accordingly to the consumption in your tank.

Anyway a continuous water change can make the dosing more stable for the people running reactors. Pretty much the same if balling with dosing pumps (when dosing is spread through the day).

You can find some writings by R.H. Farley about this topic.

[Liquid Hobby]

So, this set up pulls water out and puts water back in at the same rate and the same time?

[Frank]

Yea it pulls the same amout as it pushes.

[reefnjunkie]

Need so help to check my math.. here is the head that I’m running

http://www.coleparmer.com/catalog/product_view.asp?sku=0701620&pfx=WU

It does 0.8 mL/min(at 1 rpm) the pump I’m running is at 100 so I’m doing 80Ml/min so for a gallon I want to run just over 45 min right and for 3 gallons 90min correct? There are 3785 mL in a gallon.

 

 

 

What time will the train need to leave Chicago if it travels at 45 Km/hr-to keep up with the evaporation rate if the ambient temperture is 58 degrees and 22% humidity (scratch)

 

Agree with Grassi, convert to metric or visa versa. 1 milliliter = 0.000264172052 US gallons, 1 US gallon = 3 785.41178 milliliters, way to many decimal points for me

 

Let me now about that train and I'll get back to ya.

 

Just me being a smart ***-

 

If it is taking 47.31 minutes for 1 gallon it 141.9 minutes for 3 gallons isn’t it????

 

 

I hope you write that down, every time I do some conversion I seem to not write it or misplace what I wrote and then I do the dang math over about 10x before I write it again

[ClayTheSavageFraser]

Which heads are you using so I can get the same set up and use the same formula????

[Algae]

Which heads are you using so I can get the same set up and use the same formula????

 

 

Hey Buddy,

 

I'm gonna do the same thing. I think with the two of us and Miles helping we can do it. Take a look on the other thread mentioned and see the link I posted. Maybe we can score a deal together. I am getting the info.

[Frank]

Im using the 7016-20 I want to do to the 7017-20 later less running time more flow.

[Algae]

OK, so we will need some all thread & nuts to mount the heads. Do we need anything to connect the pumps to the shaft? I keep hearing LS etc.

 

Anyone know of a link to the older pump & head info?

 

Here is the way to load the heads. Love the robustness of the rollers!

 

[Frank]

You have to get the tubing I got mine from Mc master.... impur know what tubbing

[Algae]

Hey Clay where are ya? Was waiting but made an offer on this controller.

 

 

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290509921788