I need to replace the spider gasket in my Pentair TM-22 multiport valve. I've seen in other posts that the spider gasket should be glued into place and the adhesive that you recommend. However, your adhesive is $65 and the Loctite 401, 403, and 416 aren't exactly inexpensive, either. Plus none of them are readily available at my local Lowe's or Home Depot. Is there a common, inexpensive adhesive I can use instead?