What kind of adhesive is recommended for securing the bottle caps

[DAVE]

Hello from Wisconsin,

I used PVC cement for all the PVC fittings on my garden. What kind of adhesive is recommended for the securing the bottle caps to the PVC inserts?

Thanks, Dave

[Ron]

The same. The glue really doesn't stick to the plastic caps but is still tight enough not to leak. Use silicon if you have a leak.