Pumps again.. Frustrated. - Page 3

Beenalongtime79 · 02/18/2007, 09:24 PM

Well... eugenesa, remember that it only makes a little noise when it cuts on to cool the tank so depending on what the heat load, it may only cut on for a couple of minutes each day or cut on and off for hours.

I think with a tank of your size, that chiller should be great!

Peace,
John

eugenesa · 02/27/2007, 06:43 PM

I think I am slowing getting it - there must be a different meaning for the word "quiet" as used by the reefing community...

This 1/15 HP chiller is louder than my main kitchen refrigerator - why do people call it quite?? Behind the drywall it still produces a clearly audible pitch of "...nnnnnnn..." when it is on. This would be fine for hot summer nights when the airconditioner in the same room goes "..GGGGGGG..", but for the rest of the year I am looking at other options. The Gorman Rupp 14110 pump should arrive in a couple days - hopefully it will have much lower rate of heat transfer, so either no chiller or a peltie-based one could be used through most of the year. I will probably still keep the 1/15 HP one just in case... It is pretty powerful - got my tank temperature from +10C above ambient down to about 5C below ambient.

mdt178 · 02/27/2007, 08:06 PM

Get yourself a Red Dragon, the smallest one can do 1200gph @ 50W. If you're not satisfied with the RD...well good luck.

eugenesa · 03/04/2007, 05:26 PM

Finally... Happiness... Or, at least, very close to it. With Gorman Rupp 14110 I am running only about 4F above ambient. Compare this to +13F for Eheim 1262, and to +18F for Poseidon PS2! At the same time the 1/15 HP Current USA chiller was able to bring my tank down to about 16F below ambient - a bit of overkill, but I think I will still keep the chiller just in case. The downside is that Gorman Rupp is definitely louder than PS2. It has low vibration, easily dampen by a rubber mat + 2 layers of bubble wrap, but the sound of the motor running still remains. However, it is still quieter than my kitchen fridge and only a bit louder than my PC server tower, so I guess by local standards it can easily be called "virtually silent"

The good thing is that this kind of noise does not travel through drywall, so in the adjacent room, where my bedroom is, I can hear nothing. As opposite, the Eheim noise is almost all via vibration, and even with the pump literally hung in the air, a good part of it still travels via flex tubing and resonates the stand.

The Eheim 1262 and Poseidon PS2 are up for sale. If anybody wants one at 30% below retail - PM me. Both are less than 2 months old, and have only been run on fresh tap water.

I can't believe I am getting close to ordering live rock... My final setup now looks like this:
- 29G TruVu acrylic tank
- Sedona stand + canope
- 130W of VHO lighting mounted in the canope. I had to add a 12V low noise fan into the canope, as the tank top started to warp from the lamp heat.
- About 400 gph circulation provided by Gorman Rupp 14110, residing at the base of the cabinet. All the flow is through a closed loop, which drains the tank at the bottom of the built-in overflow and returns via two 3/4" loc-lines. The loop splits near the pump to feed the 200W Hydor inline heater via 1/2" tubing. The same branch will be used to feed the chiller during Summer.
- Auto top-off is provided by MagDrive 1.9, residing at the base of the cabinet, submerged, pumping fresh water all the way up into the main tank. It is controled by 3 floating sensors mounted on a DIY-made acrilic holder, glued inside the tank overflow chamber. (One sensor turns the 12V relay on, any one of the other 2, mounted 3/4" higher, switches it off).
- There is a separate 1/2" nipple on the closed loop, controlled by its own valve, and is used for draining and changing water in the tank.

I hope the information in this thread will be useful to folks setting up their first tank. I would certainly appreciate if I myself could find all this info before having to spend like one grand to try out all those pumps out there...

02/18/2007, 09:24 PM	#51
Beenalongtime79 Registered Member Join Date: Jul 2001 Posts: 4,437	Well... eugenesa, remember that it only makes a little noise when it cuts on to cool the tank so depending on what the heat load, it may only cut on for a couple of minutes each day or cut on and off for hours. I think with a tank of your size, that chiller should be great! Peace, John

02/27/2007, 06:43 PM	#52
eugenesa Registered Member Join Date: Sep 2006 Location: WA, USA Posts: 33	I think I am slowing getting it - there must be a different meaning for the word "quiet" as used by the reefing community... This 1/15 HP chiller is louder than my main kitchen refrigerator - why do people call it quite?? Behind the drywall it still produces a clearly audible pitch of "...nnnnnnn..." when it is on. This would be fine for hot summer nights when the airconditioner in the same room goes "..GGGGGGG..", but for the rest of the year I am looking at other options. The Gorman Rupp 14110 pump should arrive in a couple days - hopefully it will have much lower rate of heat transfer, so either no chiller or a peltie-based one could be used through most of the year. I will probably still keep the 1/15 HP one just in case... It is pretty powerful - got my tank temperature from +10C above ambient down to about 5C below ambient.

02/27/2007, 08:06 PM	#53
mdt178 Registered Member Join Date: Sep 2004 Posts: 655	Get yourself a Red Dragon, the smallest one can do 1200gph @ 50W. If you're not satisfied with the RD...well good luck.

03/04/2007, 05:26 PM	#54
eugenesa Registered Member Join Date: Sep 2006 Location: WA, USA Posts: 33	Finally... Happiness... Or, at least, very close to it. With Gorman Rupp 14110 I am running only about 4F above ambient. Compare this to +13F for Eheim 1262, and to +18F for Poseidon PS2! At the same time the 1/15 HP Current USA chiller was able to bring my tank down to about 16F below ambient - a bit of overkill, but I think I will still keep the chiller just in case. The downside is that Gorman Rupp is definitely louder than PS2. It has low vibration, easily dampen by a rubber mat + 2 layers of bubble wrap, but the sound of the motor running still remains. However, it is still quieter than my kitchen fridge and only a bit louder than my PC server tower, so I guess by local standards it can easily be called "virtually silent" The good thing is that this kind of noise does not travel through drywall, so in the adjacent room, where my bedroom is, I can hear nothing. As opposite, the Eheim noise is almost all via vibration, and even with the pump literally hung in the air, a good part of it still travels via flex tubing and resonates the stand. The Eheim 1262 and Poseidon PS2 are up for sale. If anybody wants one at 30% below retail - PM me. Both are less than 2 months old, and have only been run on fresh tap water. I can't believe I am getting close to ordering live rock... My final setup now looks like this: - 29G TruVu acrylic tank - Sedona stand + canope - 130W of VHO lighting mounted in the canope. I had to add a 12V low noise fan into the canope, as the tank top started to warp from the lamp heat. - About 400 gph circulation provided by Gorman Rupp 14110, residing at the base of the cabinet. All the flow is through a closed loop, which drains the tank at the bottom of the built-in overflow and returns via two 3/4" loc-lines. The loop splits near the pump to feed the 200W Hydor inline heater via 1/2" tubing. The same branch will be used to feed the chiller during Summer. - Auto top-off is provided by MagDrive 1.9, residing at the base of the cabinet, submerged, pumping fresh water all the way up into the main tank. It is controled by 3 floating sensors mounted on a DIY-made acrilic holder, glued inside the tank overflow chamber. (One sensor turns the 12V relay on, any one of the other 2, mounted 3/4" higher, switches it off). - There is a separate 1/2" nipple on the closed loop, controlled by its own valve, and is used for draining and changing water in the tank. I hope the information in this thread will be useful to folks setting up their first tank. I would certainly appreciate if I myself could find all this info before having to spend like one grand to try out all those pumps out there...