FAQ — Help Center | Gravity Fountain

Choose according to your consumption daily, the useful reserve, the size and the announced flow rate of the filters. The indications in number of people are guidelines: needs vary from one household to another.

The EVA 7, 12 and 25 L models designate the total capacity of the two tanks. The lower reserves announced are 4, 8 and 13 L of filtered water respectively. For the 12 L model, the distribution is 4 L at the top and 8 L at the bottom. Do not fill the upper bin when the lower reserve is full. To compare EVA 7 L and 12 L, therefore use 4 L against 8 L of filtered reserve, and not 7 L against 12 L of already filtered water.

A “tanks only” or “without filters” version does not include the cartridges necessary for filtration. A pack with filters includes the references and quantities indicated in its description. Check the contents of the box and the option selected before ordering: accessories visible in a photo are not necessarily included. If you already have filters, have their compatibility confirmed with the chosen fountain.

Not systematically. Content depends on product and option selected. Check the “pack contents” or “box contents” section, as well as the summary of the variant ordered. An accessory shown in a photo may be offered separately. Before adding a faucet or base, also check its compatibility with the brand and model of your fountain. If the text and photo appear different, contact us before ordering.

To calculate the cost per liter over a period, add the price of the fountain and the consumables purchased for that period, then divide this total by the volume actually filtered during the same period. To calculate only the cost of consumables, clearly indicate that the purchase of the fountain is excluded. Take into account the replacement at the first limit reached between duration and volume; do not use a theoretical capacity if you do not consume it before the expiration. Then compare with your actual bottled water spending over the same period. This calculation does not guarantee savings for all users.

Note the brand and model of the fountain, then the reference written on the filters or your old order. In our replacement filter menu, search for this part number and check the dimensions, fitment, gaskets and pack quantity. EVA consumables and cartridges for stainless steel fountains are not interchangeable by default. If in doubt, send us the reference of your fountain and photos of the filters installed before purchasing: Consult the corresponding page.

No. Black Filters Monderma and Black Berkey are two distinct commercial references. Their color or their possible compatibility with the same fountain does not mean that their composition, their performance, their service life or their guarantees are identical. Check the brand and reference on your order. The tests or certificates of one reference must not be attributed to the other.

According to the data sheets, Imperial GF combines ceramic, granular activated carbon and zeolite, while Imperial AMB includes a ceramic envelope and a block of activated carbon. Flow rates may differ; slower flow rate alone does not prove better contaminant reduction.

Some Monderma cartridges may fit models from other brands. Check the exact reference, dimensions, assembly and joints before purchase. The name Berkey, British Berkefeld, ProOne, Coldstream, Phoenix or Weeplow alone does not guarantee the compatibility of all their models.

The quantity sold does not determine the number of filters to be installed. If your fountain and the filter instructions provide for two elements, a set of four can correspond to two sets used successively. Installing four elements simultaneously is only possible if the fountain and cartridges allow it. This does not automatically double their length of service in months. Check the reference and the assembly instructions; store unused items according to the manufacturer's instructions.

Monderma fountains operate by gravity, without electrical or plumbing connections. Pour cold drinking water into the upper tank: it passes through the cartridges then joins the lower reserve. Respect the commissioning, maintenance and limits of the chosen filter.

No. The preparation may vary depending on the brand and reference: priming, soaking or rinsing must follow the instructions for the filter concerned. Do not apply a pressure method or priming accessory intended for another cartridge without confirmation of compatibility. If you change the type of filter, consult its new instructions even if you keep the same fountain. Our after-sales service can help you identify the appropriate instructions.

Check the tap and seals, then the level of the lower tank. Do not add water to the top when the bottom reserve is full, otherwise it will overflow. If there is a crack, stop using it and contact after-sales service. Before filling, check that the free space in the lower reserve can accommodate all the water you add to the upper tank. If in doubt about the level, wait until you have used part of the reserve.

Use cold drinking water. An EVA fountain should not be considered as a means of making uncontrolled well water potable. For a well, have the potability and any necessary treatments checked before consuming the water.

A gravity fountain is mobile and does not require a plumbing connection or an electrical supply. In the event of a water cut, its use requires having drinking water to filter. The choice of an osmosis unit depends on your needs, the performance sought and the cost of use; there is no general superiority valid for all uses.

Clean the tanks and the tap at the frequency provided in the instructions, with authorized products, then rinse carefully. For cartridges, only apply the maintenance method for the installed model: the instructions are not interchangeable from one filter to another.

No. Maintenance instructions are not interchangeable. The water and vinegar method indicated for EVA ceramic does not apply to its multi-layer cartridge nor automatically to Monderma, Berkey or Coldstream filters. Use only the products and methods authorized in the instructions for your reference. If in doubt, contact us before cleaning.

Replace cartridges at the first point reached between their maximum documented capacity and their recommended service life, or sooner if their condition or insufficient flow despite maintenance requires it. Cleaning does not reset their lifespan. Low consumption does not allow the replacement deadline provided by the manufacturer to be exceeded. Note the in-service date to follow this limit, even if the liter capacity has not been reached.

The EVA documentation provides for replacement of the cartridge at 6 months, the ceramic at 18 months maximum and the minerals at 24 months maximum. Respect any shorter usage limits specified in the instructions and instructions applicable to a damaged element.

A drop in flow rate does not, in itself, allow us to conclude that the filter has reached the end of its life or that it is effective on contaminants. Check the initial preparation, assembly and maintenance instructions for your reference. To compare two measurements, use the same fill level and number of filters. If the flow rate remains insufficient after authorized maintenance, contact after-sales service. In all cases respect the duration and volume limits: a flow rate that is still satisfactory does not allow them to be exceeded.

Before an absence, follow the storage instructions specific to your model and the planned duration. On your return, throw away the retained water and carry out the recommissioning provided for in the instructions. Contact our after-sales service if you do not have the corresponding instructions.

The scope of an NSF document must be checked for the exact reference. Some available documents relate to a component or material requirements; this does not automatically certify the performance of the complete cartridge. A test report according to an NSF/ANSI standard does not constitute NSF certification. Contact us to identify the appropriate proof for the product.

Performance depends on the exact cartridge and conditions of use. A general property of activated carbon or ceramic is not sufficient to prove the reduction of a contaminant by a given filter. For PFAS, viruses, microplastics or other substances, request the report corresponding to the reference that interests you; we do not guarantee their reduction for the entire range.

The percentage expresses the reduction in the concentration of a substance between the inlet water and the filtered water, under the conditions of the test: (concentration before − concentration after) ÷ concentration before × 100. Purely illustrative example: from 100 to 10 units, the reduction is 90%. This result does not mean total disappearance or identical reduction of all substances. Also check the model tested, the initial concentration, the flow rate, the volume already filtered and the measurement limit. A result “below the detection limit” does not prove an absolute absence.

Not automatically. A result must correspond to the tested reference, its configuration and the test conditions. Even if two cartridges belong to the Imperial range, their results cannot be transposed without justification from the manufacturer or the laboratory. If a report does not clearly distinguish between GF and AMB, ask for a match to the model you wish to purchase before inferring performance.

No. Taste, odor and appearance do not detect all contaminants or guarantee drinkability. An improvement in taste therefore does not prove an elimination of all substances. To know the presence of a contaminant, a suitable analysis is required; To evaluate the filter, a report corresponding to the model and substance concerned is required. Follow the water supply guidelines and advisories from your water distributor.

We deliver to the European countries listed in our delivery conditions. Check availability and charges for your address before confirming your order: Consult the corresponding page.

Charges depend on the destination and delivery method. Check the amount displayed before validating and paying for your order. In the event of a difference with an offer displayed on the site, contact us before payment to confirm the applicable price.

A welcome offer can be displayed when subscribing to the newsletter. The amount, eligible products and conditions are those specified in the offer actually displayed or communicated by the store. We do not guarantee a permanent 10% discount or that a window will appear on every visit.

Orders are generally shipped within 1 to 2 business days. After shipment, delivery usually takes 2 to 4 working days in mainland France and 3 to 7 working days in the European Union countries served. These deadlines are indicative; take into account availability and indications specific to your order.

As soon as it is shipped, you will receive a confirmation email containing a tracking number or link. Also check your spam. If you cannot find this message, contact us with your order number.

Contact us as quickly as possible with your order number and the desired modification. Depending on the state of preparation or shipping, we will do our best to intervene. The modification must be confirmed by our customer service; this approach does not replace your legal rights of withdrawal.

The payment methods available for your order are displayed at checkout. They may vary depending on your country and the conditions of the service provider. Check the conditions of any split payment before selecting it.

For a distance purchase concerned, you have the legal right of withdrawal of 14 days from receipt, then 14 days after notification to return the goods. The exceptions are those provided for by law; the mere opening of any product does not automatically exclude this right. The absence of original packaging is not enough, in itself, to eliminate it. A commercial extension announced for 30 days does not reduce these rights. Contact us for the terms and conditions applicable to your order.

New products sold to consumers benefit from the two-year legal guarantee of conformity from the seller, as well as other applicable legal guarantees. Any commercial guarantees depend on the brand and the product; they are in addition to your legal rights without reducing them. Consult Consult the corresponding page.

Indicate your order number, the brand and model of the fountain, the cartridge reference, their date of commissioning and a description of the problem. If possible, attach photos of the assembly, joints and the area concerned. Specify the water used, the preparation method and the maintenance carried out. For low flow, indicate the number of filters installed, the initial fill level and the volume collected over a measured time. Do not destructively disassemble the product to constitute your claim. Contact: Consult the corresponding page.

You can contact us at contact@fontaine-a-gravite.com, via Consult the corresponding page or on 02 37 91 34 45. Consult the Contact page for updated schedules.