La San Marco Retention Valve classe-6-parts/classe-6-e-s-boiler-heating-elements-hydraulics it's worth grabbing a spare

it's worth grabbing a spare now rather than searching for one later

La Spaziale part #: 02891

Maintenance Kit vs

Fiamma RST Atlantic

If the grinder won't fire when the doser lever is pulled

La San Marco Retention Valve classe-6-parts/classe-6-e-s-boiler-heating-elements-hydraulics it's worth grabbing a spareLa San Marco Retention Valve (Non Return Valve) Also called a non return valve, this spring loaded check valve is designed to hold closed until pressure reaches roughly 12+ bar, then expand and open, keeping water from backing up through the line when the pump isn't running. SPECIFICATIONS Fitting: 6 mm barb Opens at: 12+ bar COMPATIBILITY Fits: La San Marco 85 S and E, 85 Leva, 95 and 105 models INSTALLATION Technician level plumbing job. PRO TIPS If