Cup salt 1/2 cup white vinegar 1/2 cup baking soda wait

Cup salt, 1/2 cup white vinegar, 1/2 cup baking soda - wait 60 minutes. Approx 5 years old last serviced april 18 good condition and working order - new prv fitted when serviced worth £15 - new expansion vessel fitted when serviced worth £90 service engineer detected small leak from heat exchanger nevertheless the bo. Uk's #1 ecological cleaning manufacturer. While taking care.

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