Calcium Carbonate (limestone) in looping toilet outflow

[GordMay]

In North America, commercial-grade muriatic acid is a mixture of acid and water, that is commonly 31.45% hydrochloric acid by mass* (20° Baumé #).
However, other common dilutions include 29% and 14.5%.
Percent by mass is the most precise way of specifying acid strength. You can make a 2% solution by adding 1 gram of 20° Baumé acid for every 15 grams of water. But most field solutions are mixed by volume. In inch-pound units, adding 1/2 pint of 20° Baumé acid to a gallon of water produces an approximately 2% solution by mass.
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* 31.45% acid [solute] and 68.55% inert ingredients, primarily water, AKA: dihydrogen oxide [solvent].

# Concentration of acid is typically expressed in “degrees Baumé,” which is based on the specific gravity of the product and, therefore, correlates with the percent concentration of hydrochloric acid [HCl], in the solution, as follows:
Approximate HCl Concentration = Degrees Baumé
26.5% - 29.5% = 18
29.0% - 31.0% = 19
31.5% - 32.9% = 20
35.2% - 36.2% = 22
37.1% - 38.0% = 23

The standard dilution, for most cleaning applications, is one part muriatic acid to ten parts water.
Be careful when mixing, to avoid splashing the acid. Use a plastic or glass container, for measuring and mixing. Do not mix in a paper, ceramic or metal bucket.

IMPORTANT: Always add acid to water. Never add water to acid!

You can use lime or baking soda, to neutralize leftover muriatic acid.

[barnakiel]

Keep the loop.


When you replace the hose, or clean it, then do flush harder/more to avoid having to clean the hose too often.


Cheers,
b.