Pipe Size Question

[Koidaddy]

I'm starting my retro bottom drain project next week - My homemade bottom drain is a 3" pipeline to my external pump (max flow rate 4100 GPH) inlet of 2". The exit on pump is 1 1/2 " .... Question: What size of piping should I use from the exit of pump to my Answer 325 settling, and what size between bios then back to pond... I want a good flow rate with no overflow. No need to overkill on size, just the right pipe @ the right price.

Any advice would be appreciated.
Cheers!
KD
:)

[Koidaddy]

Bump!

:grin:

[Peg]

Sorry KD, no help here. Mine was all 2" untill after the leaf basket then it went to 1.5" intake and return. I used a threaded connector that went from the 2" basket to 1.5" slip end to the hose. I'll see if I can find a pic.

[Peg]

Sorry no pics but you may have to take a piece of pipe to HD and see what you can come up with to down size it to what you want. Pond plumbing and regular plumbing can be a real B :censored: H to meld together but it can be done just keep it cool and you will do fine.

[philly]

OK buddy now that I know what you want to do I will have to go out to my filter and take a few pics to save your B*tt, give me a few minutes and I will send you some photos. :lol:

[philly]

OK KD see the first pic the White pipes with dark Grey elbows are 2", the light Grey pipe are 1 1/2". Second pic the pipe to the bottom right comes from the pump output 1 1/2" to 2" see the reduced White collar from 2" to 1 1/2". Third pic intake from the pond 2" white collar reduced to 1 1/2" pipe to quick disconnect screwed into the filter basket. Fourth pic from pump 1 1/2" connector screwed into the pump output to 90 degree 1 1/2" elbow connected to 1 1/2" White collar to 2" pipe to bead filter. Fifth pic dark Grey 2" tee with 1 1/2" sleeve glued into the tee for 1 1/2" light Grey pipe connected.

[philly]

KD the first pic shows up close the 1 1/2" disconnect screwed into the pump output. Second pic shows up close 2" collar with 1 1/2" reducer glued into collar with 1 1/2" pipe to intake side of pump. Third pic 1 1/2" quick disconnect up close screwed into filter basket. Fourth pic 2" collar up close with 1 1/2" sleeve and pipe glued in. Hope this helps you out the quick disconnect, collars and reducers can be picked up at most pool places. :smile:

[Koidaddy]

Phil, thanks very much for posting the pix - Gives me some good ideas! :yup:

One thing I do need clarification on, How much bigger in inches should the pipelines be in the ones running between filters as to the exit pipeline from pump? My outlet from pump is 1 1/2 inches - Should I immediately jump to, let's say a three inch pipe, which would then be carried throughout the chain of filtration and then back to the pond? Any thought??

Also, how much should I expect to pay for gate valves - Still gotta pick up a few this week before final installation.

KD
:)

[Koidaddy]

I'm going to print off all your photos Phil, arming myself before heading to the pool supply store! As they say, "A picture is worth a thousand words"

:-)

[philly]

Phil, thanks very much for posting the pix - Gives me some good ideas! :yup:

One thing I do need clarification on, How much bigger in inches should the pipelines be in the ones running between filters as to the exit pipeline from pump? My outlet from pump is 1 1/2 inches - Should I immediately jump to, let's say a three inch pipe, which would then be carried throughout the chain of filtration and then back to the pond? Any thought??

Also, how much should I expect to pay for gate valves - Still gotta pick up a few this week before final installation.

KD
:)


You can go to any size from there on depending on what you have in mind and there is no restriction. Gate valves can run you anywhere from $15.00 to around $25.00 but a wise person would shop around. :-)

[Koidaddy]

Where should I look for good deals? I don't want to be driving around wasting good trench digging time!

Anyone Know??

KD
:)

[philly]

Phone around for the cheapest pool place and then the plumbing marts. :yup: