I bought one of these:
https://www.amazon.com/Little-Giant-...s%2C103&sr=1-4
Super stable IF you buy the accessory work platform and haven't found anything I couldn't safely reach with it. HOWEVER, at 73, I'm not doing some jobs anymore; like replacing my high screens - bonded and insured pros for such things. My pool is 6' off the ground so that is in addition to the part of the ladder visible.