free chiller

[doug]

alls you need is 400 ft of 3/4 pipe and a shovel. i just installed a geothermal loop to the green house operation. no pumps needed . the water simply siphons from the main vat and runs through the ground then dumps in the sump. in at 78 out at 62 awsome results. now all i need to do is get an actuated ball valve on a temp controller and you have it

 

[Woodstock]

Cool idea! ...literally....

huummmm.... I suppose periodically you would need to pressurize the 400' of pipe with strong water flow to flush out any settled debris or wayward snail??

 

[doug]

the water is strained before it goes on its 400' cool down . will try a pump just to see how far i can push it before i see a temp rise , all in all the system is working so far

 

[addict]

That sounds like a great idea... once I actually get my own house I might have to look into this...

Do you have any idea on how many GPH runs through your 'chiller'?

It might almost be worth it to put a small pump on the line so that you can get a bit more output... but a 16 degree differential is awesome!

Also, how many gallons does 400' of 3/4" pipe hold?

I'm also having a tough time visualizing how your system can dump back into your sump by siphon if your piping is underground... is your sump also recessed below ground level?

 

[doug]

the bottom of the sump sits at ground level and the main vat is 3'6" above grade heres a pic

 

[addict]

Sweet!

Sorry I missed this when you posted it... looks like I have a project to keep in mind now.

 

[Witfull]

looks like I have a project to keep in mind now.

ut oh~

 

[cracker]

Agreed!

 

[cracker]

Doug how deep did you lay the pipe? Outer Banks?

 

[WaiWiliki]

400' of 3/4" pipe will give you 15.5 gallons of water

 

[doug]

you are right and the flow has to be slow to lower the water temp that is why I have added a stall feature to the flow to allow contact time to lower the water to the desired drop