As Aluminum anode rods corrode they can produce an aluminum oxide deposit.
The aluminum oxide forms a virtually odorless "gel" substance that can vary in texture from a firm somewhat sticky curd to a thick running slurry.
The gel can be either milky or clear.
Typical with higher PH water source.
Flush and rinse WH
Change to Magnesium Rod........but they can dissolve quicker so check routinely to get an idea of life span.
Also they can react with high sulfur content water source and produce Hydrogen Sulfide Gas ----Rotten Egg Smell.
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31