Water hardness in Parvomay
3.11 mmol/L very hard
Tap water in Parvomay is very hard: 3.11 mmol/L (311 mg/L · 18.2 gpg · 17.4 °dH).
Source: ViK Plovdiv, Обща твърдост по населени места (2026) · data checked 2026-10-29
Range across supply zones: 310–312 mg/L.
Parvomay's water comes through ViK Plovdiv, which reports a computed hardness of 311.2 mg/L as CaCO3. The range is narrow, 310.2 to 312.2 mg/L, so the supply looks consistent. This is very hard and the highest of the Plovdiv-area towns in this batch. Descaling appliances more often is the practical consequence.
Bulgarian health inspectorates report hardness in mgeq/L (1 mgeq/L = 0.5 mmol/L); the limit is 12 mgeq/L.
Water data
| Total hardness | 3.11 mmol/L |
|---|---|
| Utility | ViK Plovdiv |
How Parvomay compares
- Tap water in Parvomay is 147 % harder than the median of the 26 cities we track in Bulgaria (1.26 mmol/L).
- By hardness it ranks 1 of 26 in Bulgaria (1 = hardest); 100 % of these cities have softer water.
- In Plovdiv it is number 1 of 15 cities; the regional median is 1.78 mmol/L.
- Nearest city with clearly softer water: Sadovo, 23 km away (0.9 mmol/L).
Ranking of the hardest and softest water in Bulgaria →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Parvomay
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 17 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S3 |
| LG | H3 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Parvomay water hard or soft?
It is very hard: 311 mg/L as CaCO₃ (18.2 gpg, 17.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Parvomay safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Bulgarian health inspectorates report hardness in mgeq/L (1 mgeq/L = 0.5 mmol/L); the limit is 12 mgeq/L.
How many grains per gallon is Parvomay water?
18.2 gpg, equal to 17.4 °dH, 31.1 °fH or 311 mg/L calcium carbonate.
What dishwasher salt setting should I use in Parvomay?
For 311 mg/L (17.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Parvomay?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: ViK Plovdiv, Обща твърдост по населени места (2026). Method: computed from supplier's calcium and magnesium. ViK Plovdiv, Обща твърдост по населени места · Outdated figure? Tell us