System for dispensing water, comprising: a mixing tap having: a tap body having a fitting end for fitting the tap body in or on a fitting opening, a spout fitted in or on the tap body and provided with a dispensing end, a mixing device arranged in the tap body, in which the mixing device comprises a mixing device operating element, a first inlet for cold water, a second inlet for hot water and an outlet for mixed water, and an at least partly flexible hose, in which the flexible hose comprises a first water conduit with an inflow end and an outflow end, in which the inflow end is connected to the outlet and in which the outflow end ends in a nozzle provided near the dispensing end of the spout for dispensing the mixed water, the system further comprising a water source for dispensing an additional type of water, a water source valve, and a water supply conduit coming from the water source, wherein the mixing tap has an accommodation duct which runs from the fitting end to the dispensing end for receiving at least a portion of the hose, wherein the hose with nozzle is displaceable with respect to the spout between a pulled-out position, in which the hose protrudes with respect to the dispensing end, and a normal position, in which the hose does not extend with respect to the dispensing end or to a lesser degree. wherein the hose has a second water conduit with a second inflow end and a second outflow end, in which the second inflow end is connected to a connection for connecting the water supply conduit coming from the water source, and the second outflow end ends in the nozzle, and characterized in that the mixing tap comprises a water source operating element for operating the dispensing of water coming from the water source by the mixing tap, wherein the water source operating element is configured to emit an electrical operating signal to operate the water source valve that can be actuated electrically and is situated at a distance, for example near the water source, and in that the hose is provided with a ballast element for pulling the hose with nozzle to the normal position and/or keeping the hose with nozzle in the normal position, wherein the connection for connecting the water supply conduit coming from the water source is arranged in or near the ballast r element, wherein the hose has a loop part and a spout part, wherein the spout par extends at least partly in the accommodation duct and is connected to the nozzle and wherein the loop part is connected to the outlet of the mixing device, wherein the ballast element is provided between the loop part and the spout part of the hose. a tap body having a fitting end for fitting the tap body in or on a fitting opening, a spout fitted in or on the tap body and provided with a dispensing end, a mixing device arranged in the tap body, in which the mixing device comprises a mixing device operating element, a first inlet for cold water, a second inlet for hot water and an outlet for mixed water, and an at least partly flexible hose, in which the flexible hose comprises a first water conduit with an inflow end and an outflow end, in which the inflow end is connected to the outlet and in which the outflow end ends in a nozzle provided near the dispensing end of the spout for dispensing the mixed water, the system further comprising a water source for dispensing an additional type of water, a water source valve, and a water supply conduit coming from the water source, wherein the mixing tap has an accommodation duct which runs from the fitting end to the dispensing end for receiving at least a portion of the hose, wherein the hose with nozzle is displaceable with respect to the spout between a pulled-out position, in which the hose protrudes with respect to the dispensing end, and a normal position, in which the hose does not extend with respect to the dispensing end or to a lesser degree. wherein the hose has a second water conduit with a second inflow end and a second outflow end, in which the second inflow end is connected to a connection for connecting the water supply conduit coming from the water source, and the second outflow end ends in the nozzle, and characterized in that the mixing tap comprises a water source operating element for operating the dispensing of water coming from the water source by the mixing tap, wherein the water source operating element is configured to emit an electrical operating signal to operate the water source valve that can be actuated electrically and is situated at a distance, for example near the water source, and in that the hose is provided with a ballast element for pulling the hose with nozzle to the normal position and/or keeping the hose with nozzle in the normal position, wherein the connection for connecting the water supply conduit coming from the water source is arranged in or near the ballast r element, wherein the hose has a loop part and a spout part, wherein the spout par extends at least partly in the accommodation duct and is connected to the nozzle and wherein the loop part is connected to the outlet of the mixing device, wherein the ballast element is provided between the loop part and the spout part of the hose.