Coleman Pool Drain Valve cap

[Brittlowe]

I Misplaced the valve cap for the 18x48 coleman pool. I Can’t find a replacement online in stock. Can anyone help me with what I should use? I have bought 3 pvc pipe caps, one 3/8 in, one 1 1/4 in and one 1-1/2 in. Im at a loss and have company coming soon. Please help

 

[Pv2]

where exactly is the valve that needs capping? are you talking about a drain hole towards the bottom of the pool, or one of the suction or return fittings more on the walls towards the top, or something else entirely? for inside the pool or out? someone recently mentioned a regular garden hose cap fitting on a drain for the pump basket, maybe that could help?