Draining HX boiler without heat

Equipment doesn't work? Troubleshooting? If you're handy, members can help.

#1: Post by Flitzgordon »


I've a Mechanika IV and it's unable to heat.

I've to replace the refill solenoid but it will start to release all the water from the boiler if I take the part off, with the risk of having water on the regulator and other components.

What's the safest to drain the boiler without heat?

On a sidenote, is it actually possible to turn the machine upside and release the water from the steam water wand?
Will that exert pressure and damage the gauges?

User avatar

#2: Post by HB »

To empty the boiler, I remove the vacuum breaker valve and siphon the water out. Turning the machine upside down and draining via the steam wand or vacuum breaker should work too, but I don't have firsthand experience. As a safety reminder, remember to unplug it.
Dan Kehn


#3: Post by JRising »

If you have access to a compressor, you can blow little bursts of air into the steam wand with both the H2O valve and steam valve open and a pitcher under the H2O spout... Keep an eye on the gauge and try to regulate your pulses to keep the pressure below 1.2 bar.
Without a compressor you could put a soft hose over the steam tip and blow the water out with your mouth, pinching the hose when you breathe in so the pressure remains high enough to keep the breather valve closed. Don't let anybody see you doing this, you look silly, but it works and there's no way you'll reach 1.2 bar.
Because the H2O valve takes the water from the bottom right (When facing the machine) if you put the left side feet up on a cutting board to tilt the machine, it will drain a little more completely.

User avatar

#4: Post by C-Antonio »

JRising wrote:If you have access to a compressor
bicycle pump should work too
“Eh sì sì sì…sembra facile (fare un buon caffè)!”


#5: Post by forbeskm »

My HX Salvatore has a small cap on the boiler, I picked up a bulb siphon and drained it that way.

User avatar
Supporter ◈

#6: Post by erics »

I've a Mechanika IV and it's unable to heat.
Then, first thing to do is determine WHY it will not heat. Tell me you are 100% positive it is the heating element and we can go from there.

Eric S.
E-mail: erics at rcn dot com

User avatar
Supporter ♡

#7: Post by sweaner »

JRising wrote:Don't let anybody see you doing this, you look silly, but it works and there's no way you'll reach 1.2 bar.
I found a video of just how silly!
LMWDP #248

User avatar

#8: Post by mohninme »

sweaner wrote:I found a video of just how silly!


#9: Post by Flitzgordon »

I figured out that the easiest way is to slightly release the fitting and slowly allow the water to bleed out from the underneath. Everything gets collected to a pail placed below. I watch very carefully that the water is not going towards the regulator. :D