Recent Topics
Very Basic Engine Question
by Ducked
04/21/18 11:16 PM
K&N Air Filter for FJ
by CCI
04/21/18 10:41 PM
Shoutout of the day... Thanks car51!
by SubieRubyRoo
04/21/18 10:15 PM
PTFE rear main seal installed NOT dry
by eyeofthetiger
04/21/18 09:22 PM
Why call standard spark plugs “copper plugs”?
by y_p_w
04/21/18 08:58 PM
Sesame seed oil for chicken marinade?
by aquariuscsm
04/21/18 08:39 PM
Microgreen M G 201-7 6k, CUT OPEN
by car51
04/21/18 08:34 PM
NAPA PLATINUM 41516, 17.2k CUT OPEN
by car51
04/21/18 08:24 PM
They don't make 'em like they used to...
by Alex_V
04/21/18 06:55 PM
5W-20 P.U.P. at Walmart (yes, in stock!) $24.97
by Linctex
04/21/18 06:37 PM
Havoline ProDS 10w30 on Rollback at Walmart
by JohnnyJohnson
04/21/18 05:43 PM
Richmond Raceway
by Warstud
04/21/18 05:40 PM
2009 Mustang GT
by GMFan
04/21/18 05:22 PM
Is your A/C ready for the summer?
by Nick1994
04/21/18 04:51 PM
Pennzoil Synthetic Rollback Walmart
by FordBroncoVWJeta
04/21/18 04:48 PM
Alternators, A just in case Scenario.
by rollinpete
04/21/18 04:38 PM
Palm Ratchets
by 2015_PSD
04/21/18 04:32 PM
2013 Equinox ATF change
by Dave Sherman
04/21/18 04:13 PM
Champion vs NGK Spark Plugs ?? Iridium
by fins
04/21/18 03:46 PM
Are you driving the same car since 2010
by CourierDriver
04/21/18 03:45 PM
Newest Members
Marc32275Jax, puma4440, zeroyon223, wade12345, rdatman
64806 Registered Users
Who's Online
24 registered (ctechbob, Blkstanger, AMC, aquariuscsm, 3 invisible), 631 Guests and 36 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64806 Members
68 Forums
282100 Topics
4709904 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4715958 - 04/04/18 09:31 AM Help! Water leak under slab
Cujet Offline


Registered: 02/15/03
Posts: 6973
Loc: Jupiter, Florida
FL acreage property, concrete block home with a monolithic slab. Pipes under slab.

Yesterday, walking barefoot I notice a hot section of tile floor. Sure enough, its where I remember the water pipes being. Turn off the water heater inlet overnight and the floor cools. Turn on the water heater inlet and a rush of water is heard. Rinse-repeat. Yup, I've got a substantial leak.

The hot-spot is about 13-14 feet in from the wall. I suppose one could tunnel underneath in wintertime, when the water table is low. As my house is on a bit of a mound.

I'd really hate to break up the tile floor and destroy the slab. As of right now, I don't have any known or major slab cracks, or any water in the home.

Of course, the hot spot may not be where the leak is. As some of the pipes have insulation.

Suggestions? I have zero idea how to deal with this, other than to tunnel under and solder in a new section.

Installing new plumbing in the attic is prob exceptionally difficult.


Edited by Cujet (04/04/18 09:32 AM)
_________________________

Top
#4715968 - 04/04/18 09:37 AM Re: Help! Water leak under slab [Re: Cujet]
IndyIan Offline


Registered: 09/23/08
Posts: 8897
Loc: Ontario, Canada
Copper pipes? I don't know if they make pipe cameras that work with that size of pipe, but if they do having a look to see where the problem is would be a good start.
Also for hot water, pex in the attic might be surprisingly easy to install even down into the walls. You'll get instant hot water in the summer too!
_________________________
07 Focus ZXW, 5spd manual, 201km M1 5W30
18 Outback 2.5 CVT 2km FF

Top
#4715973 - 04/04/18 09:40 AM Re: Help! Water leak under slab [Re: Cujet]
SatinSilver Offline


Registered: 01/24/08
Posts: 9745
Loc: OH
I'm sure they have scope cameras that can find the leak. Just saw an ad for one yesterday. They can even sometimes repair the leak without breaking everything up.

http://www.leakdoctor.com/blog/How-to-Detect-a-Plumbing-or-Slab-Leak-in-Central-Florida-_AE21.html


Edited by SatinSilver (04/04/18 09:42 AM)
_________________________
2012 Toyota Camry 72k-Idemitsu 0w20,OEM filter, RT43s.
2005 Toyota Matrix 135k miles - VWB 5w30 conv, Valvoline oil filter. Nokian eNTYRES.

Top
#4715983 - 04/04/18 09:49 AM Re: Help! Water leak under slab [Re: Cujet]
barkingspider Offline


Registered: 12/22/13
Posts: 1961
Loc: socal
If you do not want to break the slab to fix the leak, your only other option is to re route the pipe. This will save your floors but u will have holes in the drywall to patch and paint. Re route is a better option as u now have new pipe vs new patched old
_________________________
06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)

Top
#4716004 - 04/04/18 10:11 AM Re: Help! Water leak under slab [Re: Cujet]
CR94 Offline


Registered: 03/20/16
Posts: 966
Loc: Western S.C. since 1996
My mother's house had that problem twice with cold-water pipes. Solved once by rerouting around the outside of the house, underground. The second time by slipping a special plastic pipe inside the copper pipe for the whole distance---a more elegant and less expensive solution. Some plumbers in your area should know how to do that if the problem is not rare there.


Edited by CR94 (04/04/18 10:12 AM)
_________________________
2011 Toyota Prius now at 87K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K

Top
#4716098 - 04/04/18 11:34 AM Re: Help! Water leak under slab [Re: barkingspider]
bmwpowere36m3 Offline


Registered: 04/29/07
Posts: 626
Loc: Connecticut, USA
Originally Posted By: barkingspider
If you do not want to break the slab to fix the leak, your only other option is to re route the pipe. This will save your floors but u will have holes in the drywall to patch and paint. Re route is a better option as u now have new pipe vs new patched old


I would agree...

Depends on what's currently buried and its age. It might be possible to use a thermal camera to pinpoint the leak. The risk, not knowing why the pipe burst, is after the fix other leaks may sprout.

I think abandoning and rerouting is likely the better option.

Top
#4716111 - 04/04/18 11:51 AM Re: Help! Water leak under slab [Re: Cujet]
bubbatime Offline


Registered: 03/18/08
Posts: 5456
Loc: South Florida
My mother in laws house was built in 1980 in Florida. She had the same problem. They re-plumbed the entire house through the attic. You could dig up the concrete but that would be substantially more money. Get a few quotes from plumbers, they will likely qoute the same thing..

Plumbing through the attic can be annoying because your water is HOT coming through the pipes for the first minute, even the cold water. The cold water for the first minute, will be 110 degrees or so, until it flushes out all the water and cools down to normal ground water temp, 72ish.
_________________________
17 Chrysler Pacifica QS syn 0W20
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 ST syn 5W20
06 GMC Sierra Nextgen 10W30



Top
#4716121 - 04/04/18 12:02 PM Re: Help! Water leak under slab [Re: Cujet]
Cujet Offline


Registered: 02/15/03
Posts: 6973
Loc: Jupiter, Florida
Thanks guys,

Yes, copper pipe. House is 15 years old. 3300 square feet total, including the 3 car garage, 2400 under air.
_________________________

Top
#4716128 - 04/04/18 12:11 PM Re: Help! Water leak under slab [Re: Cujet]
madRiver Offline


Registered: 07/11/15
Posts: 3303
Loc: New England
You have to way out rerouting the section of piping inside the home somehow like walls or attic. What are the walls made of?

Top
#4716135 - 04/04/18 12:20 PM Re: Help! Water leak under slab [Re: bubbatime]
pandus13 Offline


Registered: 08/12/11
Posts: 2872
Loc: Chicago,IL,USA
Originally Posted By: bubbatime
My mother in laws house was built in 1980 in Florida. She had the same problem. They re-plumbed the entire house through the attic. You could dig up the concrete but that would be substantially more money. Get a few quotes from plumbers, they will likely qoute the same thing..

Plumbing through the attic can be annoying because your water is HOT coming through the pipes for the first minute, even the cold water. The cold water for the first minute, will be 110 degrees or so, until it flushes out all the water and cools down to normal ground water temp, 72ish.

Here in the cold, they sometimes use re-circulation pumps to keep the water warm for a long run.
Would that be feasible for OP for cold water circuit?
_________________________
16 Golf SportWagen
13 Mazda5
08 Yaris
04 Elantra
95 accent
95 mystique
97 concorde

Top
#4716143 - 04/04/18 12:28 PM Re: Help! Water leak under slab [Re: pandus13]
madRiver Offline


Registered: 07/11/15
Posts: 3303
Loc: New England
Originally Posted By: pandus13
Originally Posted By: bubbatime
My mother in laws house was built in 1980 in Florida. She had the same problem. They re-plumbed the entire house through the attic. You could dig up the concrete but that would be substantially more money. Get a few quotes from plumbers, they will likely qoute the same thing..

Plumbing through the attic can be annoying because your water is HOT coming through the pipes for the first minute, even the cold water. The cold water for the first minute, will be 110 degrees or so, until it flushes out all the water and cools down to normal ground water temp, 72ish.

Here in the cold, they sometimes use re-circulation pumps to keep the water warm for a long run.
Would that be feasible for OP for cold water circuit?


Funny thing. Growing up in Kuwait before they had a water distribution system they delivered water via truck to house and pumped to tanks on roof. In winter we used the hot water tank inside house. In summer we reversed and the tanks on roof were the hot water(solar) and the inside water heaters shut off were cold water.

Top
#4716166 - 04/04/18 12:39 PM Re: Help! Water leak under slab [Re: madRiver]
Cujet Offline


Registered: 02/15/03
Posts: 6973
Loc: Jupiter, Florida
Originally Posted By: madRiver
You have to way out rerouting the section of piping inside the home somehow like walls or attic. What are the walls made of?


The home is concrete block, bathroom walls are tile. The drywall has very little room underneath. As the wood mounting strips are only about 1/2 inch. And that is where the wires are.

The plumbing comes up from under the slab. Does not go behind the wall



Edited by Cujet (04/04/18 12:48 PM)
_________________________

Top
#4716170 - 04/04/18 12:41 PM Re: Help! Water leak under slab [Re: Cujet]
Nick1994 Online   content


Registered: 02/19/13
Posts: 9818
Loc: Phoenix, AZ
My great-aunt has this happen to her house. Home-owners insurance paid for it.
_________________________
2015 Hyundai Sonata 2.4L 76k PU 5w30 & OEM
2000 Toyota Camry 2.2L 227k M1 AFE 0w30 & Wix
1996 Jeep Cherokee 4.0L 145k M1 HM 10w40 & Fram Ultra

Top
#4716178 - 04/04/18 12:47 PM Re: Help! Water leak under slab [Re: Cujet]
sleddriver Offline


Registered: 02/06/10
Posts: 4440
Loc: Central Texas
How about renting a thermal camera to detect where the leak is underneath and the location of the pipe? As for a solution, it's difficult to add anything without being on site. Do you have any photographs of your foundation before concrete was poured?
_________________________
1998 Volvo V70 T5 226,808 mi. Original Owner.
M1 10W-30 HM
"It's never a mistake to buy tools, defined broadly. They're not a cost, they're an investment." - J.B. Peterson

Top
#4716214 - 04/04/18 01:25 PM Re: Help! Water leak under slab [Re: Cujet]
LeakySeals Offline


Registered: 02/18/11
Posts: 6514
Loc: Hudson, NH
With lime erosion being a serious problem in FLA don't hesitate to fix that. I had this problem in my last house. Rent a concrete saw or pay someone to cut out the section of concrete. Replace the bad pipe. throw in stone base. pour a patch.
_________________________
06 Escalade 6.0L AWD 155k. M1 EP 5w30 Fram TG
03 Maxima 3.5L Unknown miles ST 10w30

Top
Page 1 of 2 1 2 >