Raising rotary pump pressure - Page 2

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erics

Postby erics » Aug 12, 2018, 5:57 pm

If it takes 4-6 seconds for the water to exit the brew group with an empty or no portafilter, something is still amiss. A rebuilt pump may be in your future.

The valve you damaged can be sourced from Fluid-o-Tech or one of their distributors. Just be sure to have your complete pump nomenclature handy.
Skål,

Eric S.
http://users.rcn.com/erics/
E-mail: erics at erols dot com

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kolu

Postby kolu » Aug 13, 2018, 3:33 am

and just for the future - you should lubricate only the O-Ring. everything else (especially the valve) should be kept as clean as possible.

Leendert

Postby Leendert » Aug 13, 2018, 12:45 pm

Thanks Eric and Lucas,
Without this feedback I lack the confidence to open and modify the rotary pump.
I will look for a new bypass valve (№ 13). As I am not sure where to buy one (could be avola-coffeesystems.de, but I prefer an address in The Netherlands) and as I will be abroad for a while this might take more than a month. At proper time I will report my progress. Leendert.