Dual sumps

I am planning the plumbing for an AGA 180 and I realized that the plumbing
would be much simpler if I had two smaller sumps, one under each overflow.
The problem is equalizing water height between the sumps. I was thinking of
simply running some PVC pipe along the back of the cabinet between bulkheads
in the sump.

Has anyone tried this, and do you think 1" PVC would be adequate? Would
flex PVC or hose be better? If one pump failed there would be flow of about
300 GPH between the sumps.

As long as you have bulkheads linking the two together, the water level would be
fine. 1" should work, but 1.5" would be even better.

I'd suggest only one return pump, rather than two. Two adds more heat to the
water.

Marc


PaulB wrote:

I am planning the plumbing for an AGA 180 and I realized that the plumbing
would be much simpler if I had two smaller sumps, one under each overflow.
The problem is equalizing water height between the sumps. I was thinking of
simply running some PVC pipe along the back of the cabinet between bulkheads
in the sump.

Has anyone tried this, and do you think 1" PVC would be adequate? Would
flex PVC or hose be better? If one pump failed there would be flow of about
300 GPH between the sumps.

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

I used to have 2 sumps chained together (on th esame level), but I only used 1
pump although using 2 is a better idea (if one fails the other is still
pumping). I wanted all of my water to pass through the first sump then to th
esecond via a 2" pipe. A 2" pipe was not big enough, I had to divert some of
the water coming from the main tank into the second sump. if you aere using 2
300 gph pumps with one in each sump, you _might be OK with 1", but as Mark said
1.5 would be better.

I will be using 2 600 gph pumps. I figure on 300 GPH between sumps because
if one pump is off, half the water flow will continue to come down each
overflow. I am planning on having the sumps about 3' apart.

How much flow did you have going through the 2" pipe?

"Rod" wrote in message
...
I used to have 2 sumps chained together (on th esame level), but I only
used 1
pump although using 2 is a better idea (if one fails the other is still
pumping). I wanted all of my water to pass through the first sump then to
th
esecond via a 2" pipe. A 2" pipe was not big enough, I had to divert some
of
the water coming from the main tank into the second sump. if you aere
using 2
300 gph pumps with one in each sump, you _might be OK with 1", but as Mark
said
1.5 would be better.

If you have two 600gph pumps, total flow is 1200gph at zero head pressure. If
one pump fails, you'll still be moving 600gph, not 300gph.

Will your tank drain 1200gph?

Marc


PaulB wrote:

I will be using 2 600 gph pumps. I figure on 300 GPH between sumps because
if one pump is off, half the water flow will continue to come down each
overflow. I am planning on having the sumps about 3' apart.

How much flow did you have going through the 2" pipe?

"Rod" wrote in message
...
I used to have 2 sumps chained together (on th esame level), but I only
used 1
pump although using 2 is a better idea (if one fails the other is still
pumping). I wanted all of my water to pass through the first sump then to
th
esecond via a 2" pipe. A 2" pipe was not big enough, I had to divert some
of
the water coming from the main tank into the second sump. if you aere
using 2
300 gph pumps with one in each sump, you _might be OK with 1", but as Mark
said
1.5 would be better.


--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

The overflows are rated at 600 gph each. With 2 600 gph pumps, I am
assuming that with one pump off, there will be 600 gph total flow, 300 gph
through each overflow leaving 300 to travel through the pipe connecting the
two sumps.

The pumps are rated at 600 gph @ 6' head.



"Marc Levenson" wrote in message
...
If you have two 600gph pumps, total flow is 1200gph at zero head pressure.
If
one pump fails, you'll still be moving 600gph, not 300gph.

Will your tank drain 1200gph?

Marc


PaulB wrote:

I will be using 2 600 gph pumps. I figure on 300 GPH between sumps
because
if one pump is off, half the water flow will continue to come down each
overflow. I am planning on having the sumps about 3' apart.

How much flow did you have going through the 2" pipe?

"Rod" wrote in message
...
I used to have 2 sumps chained together (on th esame level), but I
only
used 1
pump although using 2 is a better idea (if one fails the other is
still
pumping). I wanted all of my water to pass through the first sump
then to
th
esecond via a 2" pipe. A 2" pipe was not big enough, I had to divert
some
of
the water coming from the main tank into the second sump. if you aere
using 2
300 gph pumps with one in each sump, you _might be OK with 1", but as
Mark
said
1.5 would be better.


--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

I am planning on using external pumps so I hope that this will solve the
heat problem. Specifically two Quiet One Mod. 4000s.
In fact, I am hoping to avoid any submerged motors at all.

"Marc Levenson" wrote in message
...
As long as you have bulkheads linking the two together, the water level
would be
fine. 1" should work, but 1.5" would be even better.

I'd suggest only one return pump, rather than two. Two adds more heat to
the
water.

Marc


PaulB wrote:

I am planning the plumbing for an AGA 180 and I realized that the
plumbing
would be much simpler if I had two smaller sumps, one under each
overflow.
The problem is equalizing water height between the sumps. I was
thinking of
simply running some PVC pipe along the back of the cabinet between
bulkheads
in the sump.

Has anyone tried this, and do you think 1" PVC would be adequate? Would
flex PVC or hose be better? If one pump failed there would be flow of
about
300 GPH between the sumps.

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

Look for the book Aquatic Systems Engineering: Devices and How They Function
by Pedro Ramon Escobal (also the software.) If goes into great detail on how
to calculate how much flow you can get under what conditions hooked up with
which fittings. GREAT SOURCE for this type of info. Unfort, my book is on
loan :.(

You might be able to find a link that has some of the calculations on the
web.
This is pretty technical.

Bruce


"PaulB" wrote in message
om...
I am planning on using external pumps so I hope that this will solve the
heat problem. Specifically two Quiet One Mod. 4000s.
In fact, I am hoping to avoid any submerged motors at all.

"Marc Levenson" wrote in message
...
As long as you have bulkheads linking the two together, the water level
would be
fine. 1" should work, but 1.5" would be even better.

I'd suggest only one return pump, rather than two. Two adds more heat
to
the
water.

Marc


PaulB wrote:

I am planning the plumbing for an AGA 180 and I realized that the
plumbing
would be much simpler if I had two smaller sumps, one under each
overflow.
The problem is equalizing water height between the sumps. I was
thinking of
simply running some PVC pipe along the back of the cabinet between
bulkheads
in the sump.

Has anyone tried this, and do you think 1" PVC would be adequate?
Would
flex PVC or hose be better? If one pump failed there would be flow of
about
300 GPH between the sumps.

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

I will look into it. It sounds like what I need.

"bruce" wrote in message
news:eHEoc.80760$kh4.4801694@attbi_s52...
Look for the book Aquatic Systems Engineering: Devices and How They
Function
by Pedro Ramon Escobal (also the software.) If goes into great detail on
how
to calculate how much flow you can get under what conditions hooked up
with
which fittings. GREAT SOURCE for this type of info. Unfort, my book is on
loan :.(

You might be able to find a link that has some of the calculations on the
web.
This is pretty technical.

Bruce


"PaulB" wrote in message
om...
I am planning on using external pumps so I hope that this will solve the
heat problem. Specifically two Quiet One Mod. 4000s.
In fact, I am hoping to avoid any submerged motors at all.

"Marc Levenson" wrote in message
...
As long as you have bulkheads linking the two together, the water
level
would be
fine. 1" should work, but 1.5" would be even better.

I'd suggest only one return pump, rather than two. Two adds more heat
to
the
water.

Marc


PaulB wrote:

I am planning the plumbing for an AGA 180 and I realized that the
plumbing
would be much simpler if I had two smaller sumps, one under each
overflow.
The problem is equalizing water height between the sumps. I was
thinking of
simply running some PVC pipe along the back of the cabinet between
bulkheads
in the sump.

Has anyone tried this, and do you think 1" PVC would be adequate?
Would
flex PVC or hose be better? If one pump failed there would be flow
of
about
300 GPH between the sumps.

--
Personal Page:
http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com