Sump Water Level Changed?

[Vahanyos]

Hey guys, I need help figuring something out... usually I'm a good problem solver but in this case I cannot figure out why my sump water level changed after I did a water change.

So, I use lifereef overflow and I turned my return pump off so it's not flowing down my overflow anymore. Once it came down to barely a trickle, I started pumping water out of my display. I pumped out 15 gallons. After putting the water back in I stopped as soon as the water was trickling down the overflow ... common sense would tell me if I stop at the exact spot I started, I just pumped the same amount of water in, That I pumped out.

Anyway, after I turned my return pump back on my water level in my return chamber is about an inch higher then what it was. Why would it do that? I didn't hang the speed of the return or anything.

Help!

 

[glb]

Hey guys, I need help figuring something out... usually I'm a good problem solver but in this case I cannot figure out why my sump water level changed after I did a water change.

So, I use lifereef overflow and I turned my return pump off so it's not flowing down my overflow anymore. Once it came down to barely a trickle, I started pumping water out of my display. I pumped out 15 gallons. After putting the water back in I stopped as soon as the water was trickling down the overflow ... common sense would tell me if I stop at the exact spot I started, I just pumped the same amount of water in, That I pumped out.

Anyway, after I turned my return pump back on my water level in my return chamber is about an inch higher then what it was. Why would it do that? I didn't hang the speed of the return or anything.

Help!

That's a new one! Could the extra water be back flow from the return pipe after you turned the water off? I usually measure what I take out and put in with 5g buckets. I use a Home Depot bucket head vacuum to take out 5g then make sure my new saltwater is the exact same amount. How's your salinity? Could the water be from your ato (if you have one). I don't know how that would happen but thought I'd bring it up. Let us know what you find out?

 

[TangingOut]

You don't need help, just remove the extra bit of water until the level in your return section is normal.

My guess is that when you refilled in the display, a little more water was needed to break the surface tension for water to go over the weir.

 

[Fishfinder]

You just added a little extra water. Just remove a little the water level is normal

 

[jsker]

+1 on the above.

 

[Vahanyos]

That's a new one! Could the extra water be back flow from the return pipe after you turned the water off? I usually measure what I take out and put in with 5g buckets. I use a Home Depot bucket head vacuum to take out 5g then make sure my new saltwater is the exact same amount. How's your salinity? Could the water be from your ato (if you have one). I don't know how that would happen but thought I'd bring it up. Let us know what you find out?

The return tubes water was drained back to my sump and the level in the tube and return chamber was identical.

I also use 5g buckets from Home Depot. My Ato was left on but didn't pump any water during the water change. I can hear it easily. The water never made it back down for it to pump, end result was the water was an inch higher.

My salinity is the same as it was yesterday. If there is any fluctuation of salinity it would be from the water I used. I buy from a LFS so I have to just deal with what salinity water I get. Which Is not really a big difference

 

[chefjpaul]

Just move you ato sensor up.

 

[Vahanyos]

I ended up doing just that, taking a little water out.

That makes sense, I was just getting worried for no reason lol. I couldn't figure out why it would do that and it was getting to me.

Thanks for the responses fellas