Some people tell me I can just fill a tub with tap water and throw some dechlorinator and denitrifier solution in and were good to go. I don't know if I trust that though...
that will work fine for a fresh water system, but there are too many other things that need to be removed from the water for a SW
tank for that to be a good option.
I use a Reverse Osmosis (RO
) filter. These can produce pure water anywhere from 20 gallons per day (GPD) up to 100 GPD or more. The higher the GPD, the higher the cost. There are also RO
filters that take one additional step in filtering (the de-ionizing you mentioned) they cost a little more but you also get cleaner water.
filter is a 25 GPD so it takes just about 1 full day to fill one of my 22 gallon tubs. But, I usualy only use5-10 gallons out of the tub at a time and I have two full all the time, so I am never without water on hand. Even if I needed a mass amount in an emergency, I've got 44 gallons on hand and can have another 25 ready the next day... this is more than I will EVER need (until i get a bigger tank that is!