Watermelon peach

[Bavis54]

While bak I was given some watermelons and half a bushel of peaches. I washed everything n made a wash out of it- no sugar no water just watermelons n peaches. I de rhined melons, n squashed peaches good n put in a fermenter. Added ec 118 yeast. Worked off great for 3 days then it got a white powdery coating to cap, I stirred cap once a day n everyday the white mold looking powdery stuff got more n more. With 6 melons n peaches it made about 9-10 gal of wash. I tried gravity check but juice threw it off.I left it alone and after 14 days n I distilled it today... not very good so far. Heck I only got 2 qt of alcohol at 100-110 proof hearts. Can't believe so little alcohol. I think the white stuff messed it up- anyone ever have this happen?? Before the white stuff started it smelled great!! U could smell the alcohol but after white stuff started it jus kinda went away- didn't smell bad but def didn't smell same as before. I really wanna kno wat the fuck it was n how to prevent it. I had such high hopes for this bc at first it was amazing . Thanks guys-