AWC-How it works!
"lets say you have a 300l system and you want to do a 10% water change, you hook on a 30l AWC and set it running. Now you have 330l system with 30l of it being fresh.Now once its all mixed you have added 10% fresh water to the system and also in the AWC. when you take the AWC off you take away 90% old water and 10% new water leaving almost 10% fresh water in the 300l system! ----- simples!!"
The container doubles as a place to mix the salt and RO. The unit when used at room temperature requires no heating as the new and old water are mixed slowly during the exchange meaning there is no appreciable change in water temperature within the aquarium.
note: should there be a large temperature difference then inclusion of an aquarium heater is recommended whilst mixing the salt solution
It is not just temperature though; all the parameters including pH are changed slowly over the course of the water change meaning no sudden shocks to coral or fish. As well as meaning all the equipment in the aquarium can be left running as there is no change in water level within the aquarium. This hands out approach can only be beneficial to livestock.
A 31.5 ltr container will do a 10% change on a 250 litre system. The 2.5 litres of new water that will be disposed of when the Automatic Water Change Tank is disconnected is a fair trade when all the benefits of the system are taken into account.
Customer comments
"Dear Gordon
This is just to let you know how delighted I am with the Reefchange and Reefloat units I purchased recently. In my view both are very worthwhile purchases and in particular the Reefchange has made life very much better for me and, I trust, the inhabitants of my aquarium. I have now managed to do three mixes and changes of what is about 20% of the total volume of the tank each time, and each has gone very smoothly and without any of the hassle, wet floors etc. that used to accompany a water change. I can heartily recommend your units and I consider them to be very reasonably priced. Very many thanks
“I think it gives a really easy, mess free way of changing water.” “Am so grateful you would not believe.”- TigerIssy (saltybox forum)
I was wondering before buying my unit if most owners were hyping up this product, but I can definatley say in my opinion they are NOT!!!!!!
Thinking about buying one? You won't regret it.Hung-up on or can't get to fathom the idea out the mixing of fresh and old water together? Don't worry, it works very well, there are better posts explaining the logic better than I could that are worth reading. - Jof (saltybox posting)
and if you want to read more of others comments and discussions on the AWC click HERE
video (as supplied with the unit) of how to use - with a few short ads click here