Hey guys back with another question. So this took me a while to find but I found the location for Franklin's swimming pool textures and found the exact one I was looking for at least I'm 99% sure. I replaced it with a new texture but it still shows the original. If someone can take a look or tell me where there might be another location for this texture in X64O.rpf>LEVELS>GTA5>_HILLS>CITYHILLS_02>CH2_05C.rpf
inside of ch2_05c_blgs.ytd the texture is named os_ml_idwall_0010
did you replace it in +hi file?