I was in the boat the other day to pull out some window panels to have them redone. While I was in the boat I wanted to inspect the engine room. I saw puddling of water/mold in the aft starboard corner near the waste tank, there was also an odor. I feared the tank was cracked so I decided to pull it out today. I believe the issue was the discharge outlet hose clamps were loose but wanted to pull it out anyway to clean. I guess pumping out doesn't get everything out as it made more of a mess when the tank was ready to come out. Since I have it out I think I'll install a tank saver. I'll also plug all of the holes and pressure test or fill with water to be sure there are no cracks. If needed I will get some poly-weld and fix. Wasn't a fun job!! Wish I took a before pic. I could only imagine doing this job in 90 degree heat!