hello everyone, i would like to retrofit a jandy niche less light on the shallow end of my vinyl L shape pool. Jandy- "NOTE: When using a 1 1/2” MIP fi tting on the back of a SP-1022 or SP-1408 Wall Fitting, the interior of the Spears and Dura MIP are too small for use with the Jandy® Pro Series Nicheless LED Lights." Any suggestions as to what fitting is used by anyone here, suitable for this particular application? Also is there any return fitting i could use without having to separate vinyl liner from wall, like the hayward SP1408? thanks a bunch!!