Avoid In-Line UVs

I had this UV enclosure installed a couple years ago in a 135gal and used it occasionally when needed, recently had cause to revamp a few pump lines and removed it- I was amazed at the buildup of sludge on the glass bulb enclosure probably rendering it useless. Just a heads up about cleaning which would be inconvenient. I will now use a DIY unit that will attach in tank to the filter outlet as needed. 💡✨