solar cover for oval pool.

[henry]

I have just ordered a solar cover for my oval pool 18ftx36ft, ? how much overlap on sides should I leave, and where should I fix the straps on my cover to make it easy to roll up.

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thanks for reply, maybe i didnt explain fully on my post, ref the straps, yes i do have a reel and just want to now should i fit the straps on my oval cover by folding cover at the bend and fixing straps to cover to enable easy recovery of cover, the last one i fitted i fixed straps on the edge of oval shape but found it difficult to recover onto reel etc.