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bucolic_frolic

(46,979 posts)
Sat Dec 25, 2021, 10:49 AM Dec 2021

Water line, iron pipe to PVC

So there is an actual leak in the underground water line. Putting a temp putty fix in for the winter, still serviceable.

Leaks at the well fitting, because PVC over brass pitless adapter. I'm thinking it's best to refit with Iron coupling and teflon over brass threads, then PVC threads into Iron coupling, then glue to PVC pipe. There's a PVC elbow after that but it would be more work to refit, and I'd need more digging to make more play in the pipe.

What's leaking is the PVC over brass. It just had a minor issue that grew a little. And I cannot find a PVC coupling that is smooth on one side and female threads on the other, so I'm figuring they fail a lot and either don't make them or won't carry them. The fitting is 25 years old.

Thanks for a quickie on this specific issue, and Happy Holidays!

15 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Water line, iron pipe to PVC (Original Post) bucolic_frolic Dec 2021 OP
can you take a picture? Kali Dec 2021 #1
It's all 1" pipe bucolic_frolic Dec 2021 #2
prob cracked tightening it on Kali Dec 2021 #10
Thanks for your help bucolic_frolic Dec 2021 #11
try working on 50 year old galvanized that was probably used when it got put in LOL Kali Dec 2021 #12
I have acid 6.2 water and it just corroded the galv steel pipe to lumps and clogs bucolic_frolic Dec 2021 #13
From the photo it looks like the threaded to PVC fitting is cracked and leaking. tikka Dec 2021 #3
I've looked at that closely too bucolic_frolic Dec 2021 #4
Will this work? Hassin Bin Sober Dec 2021 #5
Or this? Hassin Bin Sober Dec 2021 #6
No, need female threads, those I can get at Lowes. /nt bucolic_frolic Dec 2021 #8
I need to come off the pitless adapter threads, so no that's opposite, but I think this would: bucolic_frolic Dec 2021 #7
A double female 1" brass coupling would work too. bucolic_frolic Dec 2021 #9
Patch is in bucolic_frolic Dec 2021 #14
The pitless adapter is indeed a very weak link. william ortiz Feb 2022 #15

Kali

(55,737 posts)
1. can you take a picture?
Sat Dec 25, 2021, 11:12 AM
Dec 2021

I have (way too much) experience with old pipe to PVC though not a lot with brass. brass often has different thread sizes than other pipe, that may be your problem. yes female thread to normal pvc couplings are available - what size?

bucolic_frolic

(46,979 posts)
2. It's all 1" pipe
Sat Dec 25, 2021, 11:31 AM
Dec 2021


I don't think the 1975 pitless adapter threads were oversized, or just a hair. They are covered here in teflon tape. Turning the fitting on there was very tight, but smooth, and it didn't leak at the time. Now it's sprung and you can see the leak shooting in this pic. The black pipe covering on the left is foam insulation installed for going over a rock upline.

Kali

(55,737 posts)
10. prob cracked tightening it on
Sat Dec 25, 2021, 01:49 PM
Dec 2021

then the water pressure will cut it open - get at least schedule 40, 80 even better

link went wonky, I just googled "1 inch pvc to female threaded coupling"


in general tape and pvc don't work well together

https://www.amazon.com/uxcell-Female-Thread-Fitting-Adapter/dp/B07M5LH1S6

bucolic_frolic

(46,979 posts)
11. Thanks for your help
Sat Dec 25, 2021, 02:43 PM
Dec 2021

That's why they use brass to brass. I think the original was a brass fitting to the steel pipe. Brass was so corroded I tossed it. There could be some corrosion on the threaded pitless too.

The brass lasted 20 years. This PVC 25. So I guess I have no complaints!

Kali

(55,737 posts)
12. try working on 50 year old galvanized that was probably used when it got put in LOL
Sat Dec 25, 2021, 02:51 PM
Dec 2021

saved only due to being on low elevation gravity, never would have handled actual pressure

pvc plumbing is one of the greatest inventions of mankind! up there with baling wire, duct tape, and jb weld.

bucolic_frolic

(46,979 posts)
13. I have acid 6.2 water and it just corroded the galv steel pipe to lumps and clogs
Sat Dec 25, 2021, 02:58 PM
Dec 2021

Lasted about 15-20 years. First to go was the joints, they didn't bury the threads enough or cut them too long.

tikka

(778 posts)
3. From the photo it looks like the threaded to PVC fitting is cracked and leaking.
Sat Dec 25, 2021, 11:50 AM
Dec 2021

Try looking at Shark bite fittings. They are very versatile and easy to use.

bucolic_frolic

(46,979 posts)
4. I've looked at that closely too
Sat Dec 25, 2021, 12:08 PM
Dec 2021

I don't think it's cracked, it's a pinhole that grew over time.

Shark Bite for pitless adapter?I looked at them online, they are push to connect and that involves a pvc washer that will be underground forever. I'm thinking glue is better, and takes up less space. Plus they don't mention PVC. Just CPVC.

https://www.homedepot.com/p/1-in-Push-to-Connect-x-FIP-Brass-Adapter-Fitting-U094LFA/202270502

Thanks

bucolic_frolic

(46,979 posts)
7. I need to come off the pitless adapter threads, so no that's opposite, but I think this would:
Sat Dec 25, 2021, 12:49 PM
Dec 2021
https://www.amazon.com/Supply-Giant-CSDQG300-Transition-One-Piece/dp/B016Y8TER6/ref=pd_sbs_2/132-1796693-9841634?pd_rd_w=j4riV&pf_rd_p=690958f6-2825-419e-9c16-73ffd4055b65&pf_rd_r=73EK7S9BQCNTK0GB4K6C&pd_rd_r=03242747-4d23-46f1-9b92-2235b3459848&pd_rd_wg=bFPjv&pd_rd_i=B016Y8TER6&psc=1

The original was a steel coupling that pretty much rusted out. The brass would have the added advantage of not needed a pipe wrench. Would brass be strong enough underground for decades?

That says one piece molded. I think I'll check on HomeDepot and Lowes stores and see if they have a brass like that. Teflon tape or one-piece molded seems the same to me - simple connection.

Thanks!

bucolic_frolic

(46,979 posts)
14. Patch is in
Sun Dec 26, 2021, 01:29 PM
Dec 2021


Cleaned with acetone, sanded, cleaned again, pasted with JB WaterWeld. It gets really sticky after about 8-10 minutes. Not too easy to work with. Surface was a bit wet but not under pressure. I view this as a temp weld to get past the winter. Be nice and easy to dig further and install a new brass adapter and male PVC conversion so it stays inside the joint and doesn't crack. Dry weather an easy project. 32 degrees and muddy not so much.
 

william ortiz

(5 posts)
15. The pitless adapter is indeed a very weak link.
Tue Feb 8, 2022, 02:54 PM
Feb 2022

The fact that you are having this problem only after 25 years indicates that it really doesn't matter what you do to it, it will still fail. As you have noticed, it's not going to last too long. So my suggestion is to leave the pitless adapter out of the plan altogether. This means you can save more money. I presume you can afford spending a couple of hundred dollars on a new well fitting. More important than the cost of end product is the time that you are going to spend on this project. You already have a new well. I would certainly not want to go back to the same well to fix a part I knew was going to get it soon. So once again, I would leave the pitless adapter out of the plan. I would also avoid using any PVC pipe. These pipes are not meant to withstand constant pressure, and the pressure of water is constant. In your case, the pressure is going to be very low because of the location of the well. So I would use schedule 80 pipe. The fittings you need are not expensive. However, you will need a coupling that is smooth on one side. Iron would be a better idea than brass because it's cheaper and more durable.

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