scanfield Senior Member Joined: 21 Nov 2011 Posts: 181 Location: Texas Expertise: I like coffee
Espresso: La Nuovo Era Cuadra Grinder: Baratza Vario
Posted Sun Mar 17, 2013, 10:49am Subject: Re: Gray water from boiler of HX descale (Cuadra)
If you have the water softener attached, the carbon will probably not pass through the screen in the softener. With the GFI, we rule out that the heating element is damaged from a lack of water in the boiler.
Remove the water softener, and try adding some 1/2 white vinegar and 1/2 tap water solution through the boiler. Remember, 4 oz of solution max through the water wand, let the pump refill, and then repeat. Then flush with tap water. Use tap and see if problem continues. If yes, another descaling should be performed. If not, the filtered water passing through the water softener may be too much and causing this problem.
I just ran a 1/2 water + 1/2 vinegar solution through the machine. The water that I was flushing was blue colored which I believe is just a reaction between the acid and the copper boiler.
I ran all the solution through the machine, then loaded up some tap water (not-filtered). I started flushing that through the machine, then let it sit for 30 minutes while I did something else. I came back to the machine to resume flushing the tap water through and this time, I got more of the grey water coming out of the hot water wand.
It doesn't make sense to me that as long as I'm flushing, the water is clear, but after letting it sit for 30 minutes, grey water comes out. It's too late to start today, but as soon as I can, I'm going to go through a descale cycle (last time took me 7 or 8 hours).
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