Poolwalls possible leaking

[Mike518]

Hi
I think I may be leaking water between the joints in the walls and I had a couple of questions
1- Can anyone tell if this are fiberglass or if not what can they be the bottom is concrete.
2- Would a leak through the joints cause the washout under the apron?

Thanks

 

[PoolguyinCT]

Very unlikely to wash out underdecking, that erosion looks like a grading issue.
hallmark pool?

 

[Mike518]

50 yo pool located in Winnipeg, Canada
Not familiar with hallmark

 

[PoolguyinCT]

Yup it’s a hallmark.

Search the forum or my posts.. I recently helped another Canadian tune his up..

 

[sktn77a]

Mike:

Looks like you have one of the infamous "concrete/fiberglass" pools, complete with leaking seams and blistering walls. Check out this thread:

EcoFinish Pool wall questions

Good luck!