Spa Leak...What to seal the leak with

[mvperry]

I have a new pool where the attached spa looses appx 4 inches of water per night. The forward spa drain is too far forward. Therefore when the pebbletech was installed they left a slight gap to make room for the drain cover. I have been trying to get the pool company to come fix but now that they have my $$$ they don't return my call. Anyway, I know where the leak is and feel comfortable fixing this myself but don't know the best product to use. What would you recommend to seal this? Thank You.

[Walter]

Are you sure it is a leak and not an issue with water returning to the pool thru gravity? You might need to put a check valve in to prevent the water from draining back into the pool. Does you spa sit higher then the pool?

[mvperry]

Yes, I have to add water to the pool to compensate for the loss every few days. This weekend I went into the spa with a mask and snorkel and found a hole slightly smaller than a dime. I was able to see the gunite shell.