We gotta design ourselves a 1 way nozzle for the ends of my 2 return. something with overlaping flaps on the inside that are pushed open by the water flow. i like your swapping check valve idea but a quick question how do remove the checkvalve? my ball valve cut off is after the check valve. i could go check valve, check valve and the second check valve could be the one i swap out.... and if the permanent one gets loaded with crud so be it check valve 2 the rotational clean one will be up to the task.... i hope

Somemore random pics...

Our super fat lawnmower Blenny

http://i917.photobucket.com/albums/a...hey/fatman.jpg

Tankshot kitchen side

http://i917.photobucket.com/albums/a...y/Tankshot.jpg

Lime Green Acro

http://i917.photobucket.com/albums/a...eGreenAcro.jpg

Red Mille

http://i917.photobucket.com/albums/a...y/IMG_0225.jpg

Unknown coral. Anyone know its name

http://i917.photobucket.com/albums/a...y/IMG_0224.jpg

Our Bicolour

http://i917.photobucket.com/albums/a...y/IMG_0200.jpg

Our friendly Foxface

http://i917.photobucket.com/albums/a...y/IMG_0176.jpg

Domino Damsel

http://i917.photobucket.com/albums/a...y/IMG_0159.jpg

tips and polyps

http://i917.photobucket.com/albums/a...y/IMG_0107.jpg

Great looking tank! Wish I could get my renos done and get one put in the same place as yours!

I would say that running your returns straight up and then splitting would be your best bet.

Have you done "simulated" power outtage yet? What happens?

the current check valve works perfect. its a ugly noise as it kicks in but its doing good i guess. my checkvalve is clear would wrapping something around stopping the light from entering it help keep crap from growing in there and fouling it up? If your thinking of doing a divider tank on thing in my dreams i should have done if i had limitless cash is gone double width to 36". A 60"x36"x27" would be ideal in my mind so much more room.

Your foxface is a rabbit. :) (I dunno, I always thought "foxface" referred to Lo vulpinus). Yours looks like a Siganus virgatus, which is a sweet fish BTW. :) ).

Everything is looking great. :)

Nice tank guys... Glad those colonies are doing well for you! :biggrin:

Be very careful with those check valves. A freind of mine has them and noticed when doing a water change that they had started to leak, bad enough to cause concern for sure. It took a while for them to get to that point but all it takes is a tube worm or whatever to make them malfunction and they might as well not be there when the power goes out.