I recently bought a house with a pool. I'm not very experienced with pools and have never lived in a house with one. My pump is in pretty bad shape, it sounds like a bearing is bad and the pump doesn't provide nearly as much suction as it should; I have to completely close the pool drain to get enough suction to run my Barracuda. A friend recently bought a new pump (for efficiency and a quieter pump) and gave me the old pump which works just fine. It is a 1.5 HP Jacuzzi pump, but I'm worried that it will be too much power for my pool, I estimate my pool's size to be somewhere between 13,000-15,000 gallons. The pump I have is so weather-worn that I can read its plate to tell what it is or what size, manufacturer, etc. it is. My guess is it is somewhere between 1/2 to 1 HP.
My question is, would it be a bad idea to install this free pump that works perfectly fine? I don't want to damage any pipes, burn up the pump, or ruin filters. If it is too much pump for my pool, are there any modifications I can make to my current setup that would make the pump work? My apologies for being inexperienced, so if I need to post more information please let me know what information would be helpful. Thank you for your help in advance!