Well, tuningvis and bigarn have hinted, but I'll just say it: exactly how does one assemble little PVC parts to make a skimmer? Is there a "skimmers for dummies" book I should be reading? You see, I'm a woman for whom a DIY project is putting nail polish on at home instead of going to a Nail Salon...
You've mentionned adding a 4th bulb more than once, it's obviously weighing heavy on your mind, I think you might as well go for it :yes: