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Interpretation of water analyses (FI) (PDF: 610 kb)

Decisions 401/2001 and 461/2001 made by the Ministry of Social Affairs and Health determine the maximum allowed content of different impurities in household water in Finland. In the following, the origin and effects of each impurity are described. The maximum allowed/recommended content is given in brackets. The most important parameters for filtration in a water analysis  are pH levels, iron, manganese, permanganate, conductivity, hardness and bacteria.


Bacteria Big Blue filters with cartridges in the background. In the front on the right, FP2 filter with cartridges

See the brochure >UV disinfection (FI) Heat-resistant and coliform (1 pcs/100 ml; 100 pcs/100ml) In domestic wells, coliform bacteria deposits are one sign of surface waters accessing the well. Deposits of heat-resistant coliform bacteria (E-coli) are a sign of feces-induced contamination. The well should be cleaned and disinfected.


pH levels (6.0.. 9.5 / 6.5.. 9.5) See the brochure > Controlled raise of pH levels (FI) pH indicates the acidity or alkalinity of water. Acidic natural waters with pH under 7 are common in Finland. The acidity is due to aggressive carbon dioxide that corrodes metal tubes and may thus cause water-induced damages. Low pH level in water can cause skin irritation. Greenish color in water equipment or hair is a sign of low pH values.


Conductivity and salts (2,500/400 µS/cm)
 See brochure > Removal of salt, fluoride, nitrate and arsenic (FI) Conductivity indicates the content of salt, such as NaCI, dissolved in water. High conductivity is a sign of an excessive amount of salt which is harmful to both health and water equipment due to corrosion. Chloride causes unwanted taste in water and corrosion in water equipment when the levels reach 50–200 mg/l. Natrium levels must not exceed 200 mg/l. Excessive salt, nitrate, fluoride and arsenic, for example, can be removed with a special membrane method (model RO 650)


Colour (40 mg Pt/l) and odour Clean water is colourless and odourless. Colour in water is usually caused by humus, iron and manganese, for example. Copper-containing water may get colorised very strongly when combined with a detergent. Odour in water may be caused by hydrogen sulfide, manganese and organic compounds, to name a few.


Sedimentation Sedimentation is caused by iron (causes colour changes from reddish to brown), manganese (dark in colour), hardness (light in colour, or brown when occurs together with iron), humus (yellowish green to brown), copper together with other compounds (blue-green). Furthermore, sand may be found in a bore wells and trash or moss in surface waters.


KmnO4 figure (20/12 mg/l) The KmnO4 figure indicates the amount of organic decaying substances in water. In Finland, this organic substance is typically humus, which affects both the look and taste of the water and may contribute to the forming of sedimentation. See brochure (FI)


Iron (0.4/0.2 mg/l) Along with humus, iron (also known as rust) is one of the most common impurities found in wells. When the iron value exceeds 1 mg/l, a pungent, metallic taste and possibly crud may be detected. Even smaller contents may cause colouration in sanitary rooms and laundry. Large amounts of iron may cause clogging in water equipment and rust pipes and dishes. See brochure


Manganese (0.1/0.05 mg/l)
 See brochure  |  Further information on the impact of manganese on intelligence quotient (FI)
 Manganese is typically found together with iron, but occasionally also separately. The harmful properties of manganese are the same as with iron, but they emerge at lower contents.


Hardness (Suggestive Ca 100/50 mg/l) See brochure > Removal of manganese and humus (FI)
 Hardness refers to calcium and magnesium contents dissolved in water, both useful for health. However, hardness creates so-called fur in heat exchangers and other water equipment, which undermines heat transfer. In hard water, more detergent is needed than in soft water. Water is considered hard when its hardness value exceeds 10°dH.


Alkalinity Alkalinity indicates the buffer capacity of water and it is the sum of compounds of alkaline behavior: hydroxide, carbonate and bicarbonate.


Fluoride (1.5 mg/l) See brochure > Removal of salt, fluoride, nitrate and arsenic (FI)
 Fluoride originates in soil. Excessive fluoride causes disruption with tooth enamel formation.


Nitrogen compounds (NH4 0.5 mg/l; NO3 50 mg/l; NO2 0.5 mg/l)
 See brochure > Removal of salt, fluoride, nitrate and arsenic (FI)
 Nitrogen compounds end up in water through the decomposition of organic material, from fertilizers and with sewage. Ammonium impairs the odour and taste of water and increases corrosion. Small children and pregnant women, in particular, should avoid water with high nitrate contents.


Copper (2,0 mg/l) See brochure > Controlled pH raise (FI)
 Copper usually originates in pipes due to dissolution caused by low pH levels. Copper contents are higher in hot-water pipes than in cold-water pipes. Copper causes metallic flavour in water, contributes to corrosion and causes greenish colour in water equipment and hair.


Arsenic and uranium 
 Some of the heavy metals, such as zinc, are indispensable micronutrients, while others are environmental toxins, including lead, uranium, cadmium and arsenic. In addition to causing a risk of cancer, arsenic in drinking water may aggravate the impacts of smoking and prevent the natural self-healing mechanism of DNA. See a link to the original publication. Heavy metals originate in soil or bedrock or different emissions. Uranium is known to increase the calcium, phosphate and glucose contents in urine and contribute to the progress of osteoporosis.  See brochure (FI)


Radon (100/300 Bq/l) See brochure > Removal of radon and uranium (FI)
 Radon is a gaseous radionuclide that is commonly found in bedrock in Finland and Sweden at least; readings of 70,000 Becquerel/l have been measured in water in drilled wells. Radon increases the risk of cancer to a significant extent in case of intensive exposure. Radon commonly occurs together with uranium. Radon does not occur in well-aerated surface wells.

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Ordering and delivery terms in our online store


The vendor, and future supplier, will be Oy Pumppulohja Ab or Oy WatMan Ab Vedenkäsittely. Address Yrittäjäntie 4, 09430 Saukkola. Phone 020 741 7220 and email

Pumppulohja WatMan is a reliable and robust partner. This is evidenced by the highest possible credit rating by D & N.


Prices are quoted for each product. Prices include the current VAT. The transportation is priced separately before payment is made. All online prices only apply to orders placed through our web site.

Liability for price errors: We reserve the right to alter prices or to change any erroneous prices. If the price of the product has risen after the order has been sent, we will sell the ordered items at the price at the time of ordering. However, we reserve the right to reject an order if there is an error that is independent of the supplier. We will then automatically refund your payment.

Delivery Method:

Products are delivered by mail or by a transport company selected by the customer. Products are also available at no additional cost at our factory as per a separately agreed schedule.

Delivery time: Delivery time of the products is either product-specific, either immediately in stock or 3-7 days, with a real delivery time of 3 to 10 day from the order date. We will communicate any the longer delivery times for specialty products.

The express delivery method, when delivery takes place within the day of the order or the next business day, can be selected separately.

Payment method:

When ordering as a private person the prices take into account the online store discount, which requires payment of products with an online payment using the banking service as it appears on the front page of the online store. Prices include VAT. We distribute the products to retailers according to the terms agreed upon.

Payment Service Provider

Paytrail Plc (2122839-7) is co-operating with Finnish banks and credit institutions as a provider of payment transfer services and as a payment service provider. Paytrail Plc will be credited to the payer by bank statement or card payment and it will forward payment to the merchant. Paytrail Plc has a payment institution license. In the case of complaints, we ask you to contact the vendor first.

Paytrail Oyj
Business ID: 2122839-7
Innova 2
Lutakonaukio 7
40100 Jyväskylä
Tel: 0207 181830

Online Banking

The payment transfer service associated with e-payment is implemented by Paytrail Oyj (2122839-7) in co-operation with Finnish banks and credit institutions. For the user, the service works just like a traditional online payment.

Shipping Fee:

Before confirming the order, delivery costs are itemized on a product-specific basis. The share of shipping costs for postal products ranges from EUR 5 and for freight transport from EUR 20. In the e-commerce order, the buyer is entitled to a discount on the online store even if he or she retrieves the products from the factory.

For express delivery, we will charge a separate express delivery fee of EUR 10 when the order value is less than EUR 200 or EUR 25 when the value of the order exceeds EUR 200. Express delivery fees are charged at 1« times rate.

Binding order:

A binding trade agreement will enter into force once a customer has submitted or paid for an order. We will confirm orders over 1000 euro separately by e-mail or telephone. We reserve the right to limit the sale of products in larger batches or specialty products, for example due to poor availability. The supplier's liability for poor availability of the product, authority or import restrictions is always limited to the cancellation of the order and the refund of any possible money that has been previously paid.

The consumer has the right to cancel the order at any point, even when the order has already been processed. See the restrictions below.

Suppliers reserve the right to cancel an order if the customer has not fulfilled his obligation to disclose information, see below. In this case, the supplier's liability is limited to cancelling the sale and possibly reimbursing the money paid in advance.

Obligations of the Customer:

Before ordering, the customer must consult the product's product descriptions on our website, the product itself at our factory or by discussing the order with our sales staff. In the case of a clear product defect, suppliers may rely on it being a mistake if there was such an obvious mistake that the customer should have understood the existence of the error. Suppliers reserve the right to cancel an order if the customer has not fulfilled his / her disclosure obligations.

In this case, the supplier's liability is limited to cancelling the sale and possibly reimbursing the money paid in advance.

We continuously develop our products. For this reason, the illustrated images may be indicative and may have deviations may occur in, for example, colour. Possible deviations of the image have no effect on the technical characteristics or operation of the product.

Reminders and Returns:

The consumer has the right to cancel the order even when the order has already been processed.

If the customer cancels the order only after the delivery of the products without unjustified reason - such as a product defect -, it is a case of unilateral cancellation of the order. In the case of unilateral cancellation, we will refund the amount of money already paid for the products. However, we will not reimburse the shipping costs already paid for and they remain the responsibility of the customer.

Reminders must be made within 7 days of receipt of the goods. According to the Consumer Protection Act, the right to cancel a subscription by mail order is 7 days after receiving the first item. The consumer must return the goods within 14 days of delivery, but not in the form of cash on delivery.

Returns due to wrong product information or due to product failure are free of charge by post. If the product is returned as a carrier service, the supplier's contract number must always be indicated. The purchase date is considered the day when the shipment has been received or picked up from the post.

The right to return to online store sales applies to unused and merchantable products. During retrieval, the consumer has the right to assess the product and try it in the same way as he could do when buying a product from the store. The consumer can open the box to examine and try out the goods without losing their right of return. However, he cannot install the product for use. After the product has been used, the product is not freely refundable, but the product is subject to our general warranty terms, below.

In exceptional cases, we can accept the return of a product that is not possible to resell, defective or outside the return period. However, we charge at least 30% of the price of the returned product.


All products have at least six months' warranty under the Consumer Protection Act. On a product-specific basis, our guarantee is typically 12 to 24 months. Under the Consumer Protection Act, a buyer must notify the guarantor of the error within a reasonable time when the buyer has detected a defect.

We always comply with Finnish law. We also comply with generally accepted contract and warranty terms in Finland, such as the general Nordic Delivery Terms NL 92 of the Finnish Metal Industries Federation. The full product warranty can be obtained from or on request.

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