Water hardness in Plovdiv
2.45 mmol/L very hard
Tap water in Plovdiv is very hard: 2.45 mmol/L (245 mg/L · 14.3 gpg · 13.7 °dH).
Source: ViK Plovdiv, Обща твърдост по населени места (2026) · data checked 2026-10-29
Range across supply zones: 234–256 mg/L.
Plovdiv's tap water is supplied by ViK Plovdiv, which publishes total hardness by settlement. The computed median is 245.2 mg/L as CaCO3, within a range of 234.2 to 256.2 mg/L, which is very hard. The source does not break down the supply by raw-water source here, so expect scale on kettles and heaters and check the ViK page for your area.
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 | 2.45 mmol/L |
|---|---|
| Utility | ViK Plovdiv |
How Plovdiv compares
- Tap water in Plovdiv is 94 % harder than the median of the 26 cities we track in Bulgaria (1.26 mmol/L).
- By hardness it ranks 5 of 26 in Bulgaria (1 = hardest); 84 % of these cities have softer water.
- In Plovdiv it is number 4 of 15 cities; the regional median is 1.78 mmol/L.
- Nearest city with clearly softer water: Sadovo, 16 km away (0.9 mmol/L).
- Nearest city with clearly harder water: Parvomay, 39 km away (3.11 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 Plovdiv
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 14 °dH |
| AEG / Electrolux | 3 |
| Beko | 4th |
| Hoover | S2 |
| LG | H2 |
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 Plovdiv water hard or soft?
It is very hard: 245 mg/L as CaCO₃ (14.3 gpg, 13.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Plovdiv 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 Plovdiv water?
14.3 gpg, equal to 13.7 °dH, 24.5 °fH or 245 mg/L calcium carbonate.
What dishwasher salt setting should I use in Plovdiv?
For 245 mg/L (13.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Plovdiv?
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