RE: Sand from Home Depot

[Marco Delsordo]

Title: Message

exactly!!!!! that�s what�s capilarity principle (hope that word exists in english) but is a principle in physics that if you have 2 containers conected  by any way, and liquid in them,  the liquid is going to be at the same level all the time, so, based in this principle, if you take out water by any way (say a power head)  a water flow will start in the pvc tube until the level is equal again (which only happens when lights go out and the power head stops working.) it is an easy and safety method to run a filter or refugium without haveng the worry of overflooding Marco -----Original Message----- From: Bob Brooks [mailto:[EMAIL PROTECTED]] Sent: Martes, 09 de Octubre de 2001 05:47 p.m. To: [EMAIL PROTECTED] Subject: RE: Sand from Home Depot Marco:   OK I get it. They are at same level and a 1 1/2 " PVC pipe pipe runs between them which results in the water level being the same in each. You can pump as much as you want to (within reason) from on to the other and they will always have the same water level even if the pump(s) go out. The pumps provide circulation is all.     Bob -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Marco Delsordo Sent: Tuesday, October 09, 2001 4:36 PM To: [EMAIL PROTECTED] Subject: RE: Sand from Home Depot Ok, you�re right, if the sump and refugium are not on the same level and lights go ,  the main tank can be emptied in matter of minutes. Same level is a must. I did this only by placing some bricks under my refugium to be equal as the sump. The power head is just to return water from the refugium to the sump again. Note that the return water form the refugium is entering the sump where the bioballs were. This power head will determine the flow rate  into the refugium, a bigger ph more flow and the inverse, but it is great that there will NEVER be problems like when using 2 power heads. The pvc pipe will deliver the exact amount of water that the ph returns to the sump, no more no less. If you want pics let me know Marco -----Original Message----- From: Bob Brooks [mailto:[EMAIL PROTECTED]] Sent: Martes, 09 de Octubre de 2001 02:20 p.m. To: [EMAIL PROTECTED] Subject: RE: Sand from Home Depot Marco:   I followed your explaination of putting the sump and refugium at the same level with a pipe between them anywhere below the water line and above the sand. This is the simplest way but only works if both can be at the same level. I got lost however when you explained the pump. Can you explain agian? What's the pump doing in the refugium?    Bob    -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Sisemore, Chris Sent: Tuesday, October 09, 2001 4:06 PM To: '[EMAIL PROTECTED]' Subject: RE: Sand from Home Depot But then you have to worry about a pump failing & adds more hardware to the system. Also if you are pumping water in & out the flow rates would have to match exactly.   Chris -----Original Message----- From: Andrew Dillard [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 09, 2001 3:04 PM To: [EMAIL PROTECTED] Subject: Re: Sand from Home Depot easier idea is to partition a small section of your glass sump and put a pump in it, this way you dont have to worry about a siphon failing.