Pool Deck Sinking around Spa

jamminonthe1

Member
Jun 19, 2017
6
Bowie, MD
Hi everybody. My pool deck is sinking around my spa. I am looking to get it repaired but I want to make sure all of the issues are addressed. My pool builder told me that they only do complete renovations. I contacted a mudjacking company but I want to make sure that there isn't a problem with the pool and plumbing. The water level in the pool does not seem to be dropping any faster than usual but when the pump is running, the water level in the spa drops pretty quickly. There does not appear to be a check valve on the plumbing to the spa but it used to hold water when the pump is off. It seems like the water is going back into the pool but I can't be sure that it is not leaking into the ground. I do not know if the pool deck is due to a grading issue, settlement over a long period of time, or an active leak. What would usually keep the water in the pool when the pump is running when there is no check valve? Is mudjacking a good solution? Any help would be greatly appreciated.
 

Attachments

Rich D

Bronze Supporter
Aug 3, 2018
892
MA
Is mudjacking a good solution? Any help would be greatly appreciated.
Seems like a odd place for settlement from poor backfill issues. They will usually ramp out of pool on shallow end so that is where the deepest compaction issues are, unless they had some type of major cave in. So my suspicion would be a plumbing leak. No matter what course of action you choose you would definitely want to get all the lines pressure tested. It is the only way to confirm they are not leaking.

The only way I would use mud jacking instead of removing and replacing is if they would warranty there work and the cost savings was huge. The only way to properly asses the issue, - is to remove the deck and dig down and find all the issues. The deck could very well keep settling after the mud jacking.
 
Last edited:
  • Like
Reactions: Arizonarob

Arizonarob

Gold Supporter
Silver Supporter
TFP Guide
Mar 25, 2018
3,976
Chandler Arizona
Yeah I agree with Rich, that is some serious settling.
Approx how long has it been like this? Has this happened in a short amount of time? Or over the course of a few years?
Let me ping a couple more of our pros to get their thoughts. Hang tight. :cheers:
@jimmythegreek @Pool Clown
 

jamminonthe1

Member
Jun 19, 2017
6
Bowie, MD
Thanks Rich and Rob. The mudjacking does come with a warranty and would cost much less than digging out and repairing the concrete. I would lean towards that if we can rule out or repair any leaks.

This has happened over the last three years. When I first noticed it, it was something I could live with until I was ready for a major renovation but it has gotten worse. It has sunken noticeable amount each year. At the lowest point it has sunken a total of about 1.5".
 

Rich D

Bronze Supporter
Aug 3, 2018
892
MA
The warranty is for 5 years. If I can determine the cause of the settlement and address that issue, I would take my chances with a 5 year warranty.
The problem is it could be multiple issues and you might only find one. The spa itself could have started leaking which settled the deck. If the deck went down it took any plumbing with it. Now if you mud jack, that just puts additional pressure on the plumbing not to mention putting pressure on the back of the spa. So next year when your plumbing breaks the mudjackers can claim it is not there work that failed. I personally would not take the chance. I would put the money into proper fix now.
 
  • Like
Reactions: jimmythegreek