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View Full Version : Extending mainline with smaller diameter ?



TerryEspo
01-28-2016, 03:34 PM
As I am planning my new 3/4" mainline at 500 ft, I hope its long enough.

But if not and I want another 100 ft can I add 1/2" mainline to the end ? I have the 1/2" on hand and don't want to buy another roll of 3/4.

Is there anything wrong with doing that ? Is there something I am overlooking?

Thank-you.

Terry

Ryan Mahar
01-28-2016, 03:37 PM
I believe 3/4 main line is rated for 250 taps, so as long as your addition still keeps that number of taps in check you should be fine. The issue is when overloading a mainline and then you are trying to squeeze too much sap into the smaller mainline................assuming this is gravity feed??

mellondome
01-28-2016, 03:41 PM
Do you have saddles that fit the 1/2in line? I see nothing wrong with it if your total flow fits the 3/4. This with vac or without? Without vac you can fit more taps on the lines beacuse you dont need airspace to transfer the vac.

TerryEspo
01-28-2016, 04:05 PM
I will be using my Shurflo pump on this line.
At times I do not have the Shurflow running and then it is only on gravity.

At best I hope to be able to achieve 120 taps total.

I do have saddles that fit the 1/2" line, found them online just this week. Saddle type is hose clamp type with a gasket, fits 1/2' AND 3/4" mainline.

Maybe that should be a new post for others that need 1/2" saddles.

Cant wait to set this all up.

Thanks.

Terry

brookledge
01-29-2016, 05:04 AM
You would be fine doing that. As already said as long as you are not overloading it no problem. If you use it to extend a 100 feet or so and pick up 20 or 30 taps your vacuum would still transfer to thr 5/16 as long as you had good slope
Keith

maple flats
01-29-2016, 05:29 PM
You will like those saddles made on a hose clamp. They are all I use since first trying them.