temp

[willard65]

where is the best place to put the temp probe in a tank as there are lots of diff opinions on this ?

[oneofmany]

As far away from the heater as you can IMO.

[scooter31707]

IMO, I would not put it in the tank and the heater is in the sump. I would have both the sump, if possible, in different sections of the sump. I have my heater in the middle section and I have my temp probe in the return section.

[GimpyFin]

As long as the temp probe isn't right next to a heating element, you shouldn't have any issues. My heater is in the overflow and thermometer probe is in the sump.

[jason2459]

Originally Posted by oneofmany

As far away from the heater as you can IMO.

be-careful with this approach. This can cause issues in the far away place and in the place the heaters are located.

[Potatohead]

Just upstream of the heaters, both in the sump.

[jason2459]

I have my heaters and temp probes in the same section of my sump with the heaters downstream from the probes.

[tkeracer619]

I prefer them in the same body of water. If water flow stops between the tank and sump bad things can happen if the probe sees a lower temp than the water the heater is sitting in. Separate bodies of water can result in the equivalent of a stuck on heater.

[Rambo610]

I would do probe in the next chamber following the sump. I have mine in the overflow with heater but my chiller powers it on and off as needed

[Kevin Guthrie]

I prefer them in the same body of water.

Ditto. Heater is in the sump near the return pump's inlet. Probe is in the sump near the flow from the tank. If the return pump fails it won't cook your sump water to 100 degrees.

[homer1475]

Both in my sump. Heater in the middle chamber, and the probes in the return section.

[oneofmany]

Originally Posted by jason2459

be-careful with this approach. This can cause issues in the far away place and in the place the heaters are located.

I'm confused... So by having the proper size heater in my sump and the temperature probe or thermometer in my DT what kind of a risk am I taking? There's plenty of circulation through both tanks so the temperature doesn't really vary from one to the other. Is the return pump failing really the only thing I need to watch out for?

[jason2459]

Originally Posted by oneofmany

I'm confused... So by having the proper size heater in my sump and the temperature probe or thermometer in my DT what kind of a risk am I taking? There's plenty of circulation through both tanks so the temperature doesn't really vary from one to the other. Is the return pump failing really the only thing I need to watch out for?

Originally Posted by tkeracer619

I prefer them in the same body of water. If water flow stops between the tank and sump bad things can happen if the probe sees a lower temp than the water the heater is sitting in. Separate bodies of water can result in the equivalent of a stuck on heater.

This.


Cooking your sump could create a large nutrient spike or worse ammonia spike and reduce short term what ever nutrients were taken up by what was just killed off.

If it can happen it will happen. And it has happened to many reefers.


I actually have several temp probes. One of them are in my displays overflow and the others are in the sump.

[oneofmany]

So it basically just boils down to the return pump failing?

[jason2459]

Originally Posted by oneofmany

So it basically just boils down to the return pump failing?

Or being turned off or unplugged. And I'm sure many other scenarios. I would also highly recommend more then one controller making more then one temp probe.

Heaters of all kinds have a high fail rate and I assume all will fail. I change mine out every couple years regardless of them looking or working flawlessly. Yes, some people will say their heater has been working for 10 years etc. My uncle also smokes a pack of cigs a day and is in his 90s....

Good read on heaters.
http://www.beananimal.com/articles/a...-to-know!.aspx

[oneofmany]

Equipment failing I understand, but being turned off or unplugged doesn't really qualify IMO. (human error) Thanks for the information, but I'll continue to take my chances having the probe up top and the heater down below. I'm never really away from my tank for any length of time anyways.

[jason2459]

Originally Posted by oneofmany

Equipment failing I understand, but being turned off or unplugged doesn't really qualify IMO. (human error) Thanks for the information, but I'll continue to take my chances having the probe up top and the heater down below. I'm never really away from my tank for any length of time anyways.

Ok

[ericarenee]

my heaters are in my Refugium and there temp probe is in the Over flow box on back of tank. Far away

my other set of heaters are in my Skimmer chamber in basement sump and there probe is in the settling box before the heaters.... right past the heater water flow is the worse place someone before i think is best... if you have a small tank where all the water is in the same room in a small area i say next to the heaters is best place.

Since i have water running thru several tanks and each in different remote places in our home all circulating thru the same sump and shared return pump i space them apart to keep a more even temp.... but still my sump is about 3 deg colder then my big display.. my coral tank is about 3-4 deg higher then my main display and my fuge is same temp as display as its below it..

so conclusion .. depends on water volume and locations

[Jon532]

Temp probe BEFORE your heaters in the sump. You want your tank water to be the correct temp not the water you've just heated


Sent from my iPhone using Tapatalk

[Lsufan]

Originally Posted by oneofmany

Equipment failing I understand, but being turned off or unplugged doesn't really qualify IMO. (human error) Thanks for the information, but I'll continue to take my chances having the probe up top and the heater down below. I'm never really away from my tank for any length of time anyways.

I actually did this yesterday. I turn my return pump & powerheads off when I feed my corals. After a few minutes I turn the powerheads back on for around 30 minutes before I turn back on my return pump so the food circulates around the tank but doesn't go to the sump. Well I fell asleep before turning my return pump on so it was off from around 10 pm last night to 6 pm today when I got home from work & noticed I forgot to turn it back on. If my sensor was in the tank my sump would have been cooking because my heaters in the sump. I have both in the sump so I didn't have a issue. I feed the corals late at night so this is the second or third time this has happened.

Anyways, on both of my tanks I keep the sensor in the skimmer section & heater in the return

[roli112]

Originally Posted by Lsufan

I actually did this yesterday. I turn my return pump & powerheads off when I feed my corals. After a few minutes I turn the powerheads back on for around 30 minutes before I turn back on my return pump so the food circulates around the tank but doesn't go to the sump. Well I fell asleep before turning my return pump on so it was off from around 10 pm last night to 6 pm today when I got home from work & noticed I forgot to turn it back on. If my sensor was in the tank my sump would have been cooking because my heaters in the sump. I have both in the sump so I didn't have a issue. I feed the corals late at night so this is the second or third time this has happened.

Anyways, on both of my tanks I keep the sensor in the skimmer section & heater in the return

Sounds like you need a controller

[jason2459]

Originally Posted by roli112

Sounds like you need a controller

Even a controller can fail or be subject to human error. I know both of those all to well.