matt & pam-
I did think about that but I think with 500 CFM of air flow, Arizona being as warm as it is and the fact that the air will be drawn thru a seperate AC system (which should remove some humidity) I should be alright. I will probably only do this during the summer and vent to the outside of the house for the other 8 months or so. Luckily this is not a major part of the system and I can always scrap the whole concept of the idea if I do run into problems down the line- I'm just trying to keep the hot canopy air out of the house as well as the noise and light. We'll see how it works
alpha0r-
1- I wanted to put a sink in the garage but the lack of a viable source for a drain made that idea not feasable. If I could have put one in there I definately would have- it would make things a lot easier. I probably would have put one in a few years ago if it was possible- a garage sink is always nice for more than just reef tanks.
2- There will be a small area (about 3 inches) in front of the frag tank to put stuff on. Bigger would have been nicer but I wanted to keep the cabinet as narrow as I could so as not to take up the entire garage.
3- I thought about putting greenboard on the back wall but what I think I will be doing is sealing it really well( silicone) and putting some good paint that will hopefully make my occasional water splashes a minor concern. I just didn't want to go and re-do the whole wall with drywall. I am thinking of putting a few pieces of plastic laminate on the back wall but have not decided 100% on this idea yet.
peterk731-
Actually... it will be a semi automatic water mixing tank

. This tank will be part of the total system water volume most of the time but when it's time to do a water change all I'll have to do is close the valve to remove that tank from the system, drain it, fill with the RO tank water (above it) add salt, turn on the pump, wait a day and slowly re-enter into the main system once the new water checks out OK. Should be pretty easy and effortless but not totally automatic.
Thanks for the input and ideas- If we have thought of them it's nice to triple and quadruple check our thinking just to make sure and if we haven't thought of it, it really helps- we've tried to cover all our bases while planning this, as we want to do it right the first time, but I'm sure we have missed a few things along the way so keep the ideas and suggestions coming.