cleaning big tanks

[choog]

just curious about how you people with big tanks (i.e. over 200 gal) do your water changes. 10% is 20 gallons, so do you wheel in a trash can and siphon it out slowly or what?

 

[mandarin w]

I have a 180 with a 75 gal sump, I normally do a 30ish gallon water change, every week. and yep, I use a trash can. I use a brut can that have the whell dollies, and a rio pump to take the water out of the tank and put it back in.

 

[clintjj]

55 gallons once a month. Mix the water in a 55 gallon and pump in as i pump out. My old water goes in a tote, 30 gallons of it. The rest goes in the yard. I usually do them when it's raining to help dilute the water going in the yard. The 30 gallons get an air pump and is what i raise my brine shrimp in. I use 10 gallons at a time and replace it about once a week. that way the amo. doesn't kill the shrimp.

 

[psusocr1]

i have a 400 gallon total system so i do a 75-80 gallon water change a month. i have my RO unit connected directly into a 55 gallon drum as well as a 25 gallon bucket which are constantly bieng aerated by pumps. i put a mag pump right into my sump /refugium attached to a garden hose and drain out about 80 gallons into a drain in my house that leads directly into the waste plumbing. Then i put the mag pump into my drums of water and pump the new water directly into my sump/refugium.
it only takes me about 30 minutes since i made it as easy as possible! and all i really do is run the hose and plug the pump i and watch it drain and fill

 

[maeistero]

180 with 125 fuge and i don't know what the sump is. i have 30ft of clear hosing from home dep to extend my siphon out the door. i drain to below the deck so the salt won't kill the yard.
right now i use a 135 for mixing, but hope to get some mixing barrels for xmas.