You would need to look very heavily at that business.You need to check the leases as they generally CAP the CAM expenses a tenant will pay by a certain percent.Is Subway and Metro PCS corp or franchisee??

Hello KarenSorry you are have this troubleUse and demand heavy type K copper pipe and have it silver soldered if its under groundHave them give you a firm price quote before they start no surprise,no working by the hour or time and material ,,,if you do everyones walking on eggshells worried about the outcome,,,,forget about it,,,get a quoteUse a licensed bonded father and son plumbing contractor recomended from a local plumbing supply house [these folks pay their bills on time and are reputable]Ask them to reroute the piping if they can so most of the new work is not under the slabHave them insulate the pipe with black foam jacket before the backfillForget PVC on the irrigation lines its crap, also install all brass sprinkler valves no plastic,,its Crap..Run your irrigation in Type K copperYour father and son plumbing contractor cam make a recomendation on a masonry /concrete contractor Use them and pay them their priceHave them walk the job with you when its done and explain what they did and discuss future maintenence issues  that might arise they will be happy to do itTake lots of smartphone photos  thru the scope of the projectMake them coffee in the morning and lemonade in the late afternoon they will love you and help you get where you want to goHope this helpsDave DoyleLos Angeles

I think a cam would be obnoxious, but an interesting idea has occured to me.

@DJ Roshan NNN means tenant pay taxes, insurance and maintenance which generally is defined as CAM. 

It's possible when he pulled the toilet and cammed it he only saw up to the house trap if there is one. 

Highlighted because early terminations or limits on CAM charges can be really unexpected. a 19 year and a 20 year lease do not represent the same value.

When I told the support staff employee "Cam" these issues he recommended that I cancel the service

A program that I use is called Cam Scanner.

However there are other descent areas where you cam find 3 and 4 family.

(This trick won't work with a motion-detector floodlight; the motion detector won't work through glass.)One option for the camera is a "trail cam" or "deer cam" - basically a digital camera in a waterproof box with a big battery.