Need help with some plans

[Geoff]

when looking at pumps, do not look at the total gph at 0' of head pressure. it is better to look at the flow at the head pressure you are expecting.

if you were to close the outlets on the CLS with 4 outlets and are still using a velocity than you will be fine. if you were to do this with a Mag pump you will seriously lessen the total flow out of the pump.

just a reference: an eductor like to run at about 7psi. this is equal to about 16' of head pressure. a Velocity T3 can handle up to 28' of head pressure. a mag 12 can only handle 15' of head pressure. in other words the Mag 12 is not able to power an eductor well at all, while a T3 can easily do it, and does an OK job powering 2!! if you were to just look at the flow at 0' the Mag 12 would seem better. i have also found that Velocities seem to push a lot more flow than they are rated at. i have a T1 on my return. the pump is located 45' away and 8' below water level. it was still overpowering my 1" overflow!! a 1" overflow is rated to 600gph. a T1 is only rated to 500gph. am not sure how or why the pump was overpowering my overflow, but it was, fairly easily at that. i think these pumps are very conservatively rated.

higher head pressure pumps can handle all kinds of extra plumbing before you even see a degradation in flow. i look for higher pressure pumps when looking for pumps less than 2000gph. over that than it is better to just get what you can afford.

G~

[DevilBoy]

Geoff,
So then in your expertise should i do away with the loc line idea?

Everything i read about the Velocity pumps is they heat the water up 2 degrees or more.

ok what about this idea, i keep the loc line coming off the 45 degree elbows coming from my CL. Connect the loc line to my 2 outputs and then put the educator on the loc line. with a T3 or T4 pump.

Or, i can still get the T3 or T4 and just do as i stated earlier, about the loc line coming out of the outputs to a 3/4 to 1/2 "y" and just run 2 flare nozzles off of each output which would give me the 4 outputs but with only 2 output lines plumbed

if yall only knew how confused i am.....

[three90s&125sump]

Originally Posted by DevilBoy

Geoff,
So then in your expertise should i do away with the loc line idea?

if yall only knew how confused i am.....

I beleive you have to have the loc line for the eductors unless you make a homemade one out of PVC.

[three90s&125sump]

If you really, really want to do this right get 2 of the T3 pumps and run 2 eductors off of each pump. You will have enough flow then for sure. $$$$$

[Geoff]

do not get the T4 pump, get the T3 instead. the T4 can not handle the head pressure the other 3 can.

all of your suggestions will work fine. you can use the lockline if you want. in fact it is a great way to change the flow patterns around.

i have just heard that loc-line has an eductor that fits thier stuff. if you go with lock line than get one. the other commercially available eductors come with threaded ends so that you can just thread them into the PVC adaptor of choice for your plumbing. i had to get a 3/8" to 3/4" threaded adaptor, but that was it.

heating of the water is their only drawback. they heat the water as much as any large submersible pump would. i have found that their strength/reliability, and complete silence more than makes up for the fact that they heat the water.

it really is up to you on how much noise you want in your system. i do have a chiller on my system, but since we are in the summer months of the controller, it never comes on. in fact my heater comes on for most of the day. it is set to 80 right now. i think it is on its way down now. i use the seasonal temp controller in my Aquacontroller II. this way it mimics the temp of the house. this way i am not fighting temps all year.

G~

[DevilBoy]

Ok, i guess a T3 it is.

i can not find these loc line educators??
if i can not find them would i have plenty of flow running 2 flare nozzles out of each output with a T3?

[three90s&125sump]

You can just run the fluted nozzles then put the eductors on later if you feel like you need them.

[Geoff]

what Jason said.

this would be a good idea anyway to see if your tank can handle that much flow with your silly sand in there. j/k

G~

[DevilBoy]

whats a fluted nozzle?

[Geoff]

another name for flared nozzle. what you were suggesting earlier.

G~

[DevilBoy]

thanks guys. i am going to start buying this equipment real soon here so here is the list if you feel i should change something let me know

1 velocity T3 pump (for CL)
1 Gen X PCX 40 for my skimmer
1 MRC MR1 skimmer

2 - 3/4" MPT loc line adapters (coming out of my 2 outputs)
2 - 3/4" x 1/2" "Y" loc line reducers
4 - 1/2" x 2" flare nozzles
6" of 3/4" loc line
6" of 1/2" loc line

if i am forgetting anything at all let me know

[three90s&125sump]

Originally Posted by DevilBoy

thanks guys. i am going to start buying this equipment real soon here so here is the list if you feel i should change something let me know

1 velocity T3 pump (for CL)
1 Gen X PCX 40 for my skimmer
1 MRC MR1 skimmer

2 - 3/4" MPT loc line adapters (coming out of my 2 outputs)
2 - 3/4" x 1/2" "Y" loc line reducers
4 - 1/2" x 2" flare nozzles
6" of 3/4" loc line
6" of 1/2" loc line

if i am forgetting anything at all let me know

I got some excess 1/2 inch loc line here if you give me your address I'll send it to you for shipping cost. should be about 2 or 3 bucks.

[three90s&125sump]

PM me about it and Ill send it to you.

[three90s&125sump]

Originally Posted by DevilBoy

6" of 1/2" loc line

[DevilBoy]

pm has been sent