How to do a 100g water change?

[telamont]

How do you go about doing a 100g saltwater change? Do I put containers in my truck large enough to hold that much saltwater and find a saltwater supplier and then just pump the water into my system? Anyone have experience with doing water changes on a 900g+ system? Thanks.

 

[dave.m]

Easiest way is to mark either the display tank or the sump in 10 gallon increments while filling initially. Then for the water change you can drain the required number of gallons to a toilet or sink and then add the new saltwater.

What I have done is fill a container of the required size on customer site with RO/DI water, add salt mix, and then either run this through an external recirculating pump or just drop a pump down in the bottom and let her run for at least 24 hours to ensure a thorough mix. Drain the required number of gallons from the display or sump, whichever is most convenient, and them immediately refill with the new saltwater.

Dave.M

 

[jjk_reef00]

If this is your tank, build a saltwater mixing station and pump the new water into your display tank:
http://www.reefcentral.com/forums/showthread.php?t=1711626&highlight=salt+water+mixing+station

 

[telamont]

Thank you.

 

[iced98lx]

Yea a mixing station on site is ideal. Large tank trunks can transport water mixed and ready, especially if near NSW.

I have 105 gallon mixing tanks, I could do a 100 gallon change theoretically, though I'd want to have 150 gallon tanks to accommodate that.

 

[worm5406]

I have two 200 gallon mixing tanks. One will be RO and one SW. So in theory I would be able to do 200g water change if needed.

 

[Dmorty217]

I have a 150g container and 2 330g containers for holding RO and mixed saltwater. You have to mark on the DT where 100g is or in the sump so you know when to stop pumping water out or you could do it with 5g buckets but that will get old quickly