[AT] Water Lines

[charlie hill]

Dudley,  you should have a check valve (backflow preventer) down just on 
your side of the meter.
Have you ever thought about putting a pressurized (air bladder) storage tank 
at the end of your line where the water line
enters your house?   That might stabilize your pressure and flow a bit at 
least initially for short
runs like filling a pot or flushing the john.

I would be surprised if Al has more than 5 or 10 feet of elevation change 
from his meter to his house.

Charlie

-----Original Message----- 
From: drupert at seanet.com
Sent: Friday, January 04, 2013 2:07 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Water Lines

I agree, Mike, re: your' comment on small pipe size.  Let me describe my
own situation:  I have a 3/4" meter, the pressure at the meter on hot
summer days (when most everyone around feels they have to be watering
something) is often no better than 30 psi (I am on a community water
system), my house (according to my GPS) is 30 feet higher in elevation
than the meter and I have ~600 feet of 2" pipe between the meter and
house.  I don't recall Al mentioning his pressure at the meter or if/how
much of a rise he might have from his meter to the house so my situation
may not be at all applicable to his.  But when I read that he was planning
on 800-900 ft of 3/4 to 1 in pipe I did let out a "Yikes."

Let me just add that pipe size CAN affect both flow AND pressure.  If I
put a pressure gage on a hose bibe at the house (with no water running)
the reading will be close to what it is down at the meter.  However, if I
open a faucet or two at the house the pressure reading will then go down
quite noticeable (in my case like 20% as I recall).  Of course the amount
of the pressure loss is a function of the capacity of the water source to
the meter -

Dudley


> I was at a town government meeting last night and mentioned this thread
> to the town engineer. His reply was to never use less than 1" pipe for
> an incoming water line, especially one as long as been mentioned. And he
> also said that the 3/4" meter would be more than adequate. The problem
> with the smaller line, as mentioned, isn't pressure loss, it is reduced
> flow due to friction inside the line.
>
> Mike
>
> On 1/3/2013 11:58 PM, moscowengnr at yahoo.com wrote:
>> The posts on water lines were really informative. I am getting ready
>> to install 500 to 600 feet of water line to connect a new cabin I am
>> building on back of property where house in front burned down with
>> Oklahoma wildfires.
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