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iSpring RCC7AKUV Umkehrosmose vs. Waterdrop C1SL compared

Reverse Osmosis System

At a glance

The key numbers for both devices side by side.

Overall rating
74Solide
79Gut
Value for money
64Fair
88Excellent
Best price
€108.99
€229.00€259.00−12 %
Price advantage
€120.01 cheaper
—
Offers
2 shops
1 shop
Rank in category
Rank 9 of 15
Rank 4 of 15

Rating

Sub-ratings compared

iSpring RCC7AKUV UmkehrosmoseOverall rating 74Waterdrop C1SLOverall rating 79
FiltrationperformanceFlowrate & wastewaterInstallationRunningcosts & maintenanceBuildquality & ease of use
iSpring RCC7AKUV UmkehrosmoseWaterdrop C1SL
Filtration performance83/10083/100
Flow rate & wastewater69/10069/100
Installation67/10087/100
Running costs & maintenance77/10085/100
Build quality & ease of use65/10066/100
Filtration performance
83
83
Flow rate & wastewater
69
69
Installation
67
87
Running costs & maintenance
77
85
Build quality & ease of use
65
66

Specs

Specs compared

Key specs

Model
RCC7AKUV
C1SL
TypeInstallation type according to the manufacturer – under-sink systems connect to the water line under the sink, countertop units sit on the worktop and are filled by hand
Under-sink
Countertop (no installation)
Flow ratePure water flow rate according to the manufacturer in liters per minute – 400 GPD (gallons per day) equals about 1.05 liters per minute
0.2 l/min
0.2 l/min
Pure-to-waste ratioRatio of pure water to wastewater according to the manufacturer – at 3:1, one liter goes down the drain for every three liters of drinking water; higher is more economical; if there is more wastewater than pure water, enter a decimal, so 1:3 as 0.33
0.5 :1
3 :1
TankWhether, according to the manufacturer, the unit stores filtered water in a storage tank or filters on demand – the refill tank of a countertop unit does not count here
With storage tank
With storage tank
RemineralizationAccording to the manufacturer, adds minerals such as calcium and magnesium back to the filtered water
Yes
Yes
Rejection rateHow much of the dissolved solids (TDS) the membrane retains according to the manufacturer, in percent
97.9 %

Filter & maintenance

Filter stagesNumber of filter stages according to the manufacturer, including the membrane
7 levels
7 levels
CertificationStandards the unit is certified to according to the manufacturer – only actual certifications, not “tested to the standard”; NSF/ANSI 58 only if the whole system is certified, “certified elements” or “components” do not count
NSF/ANSI 58 (reverse osmosis)NSF/ANSI 372 (low lead)
Pre-filter replacementRecommended pre-filter replacement interval according to the manufacturer in months
12 months
12 months
Membrane replacementRecommended replacement interval of the reverse osmosis membrane according to the manufacturer in months
36 months
12 months
Filter costCost of replacement filters per year based on the manufacturer’s replacement intervals, in euros
69 €/year
Tool-free filter changeAccording to the manufacturer, filters can be changed without tools
No
Yes
Standard filterAccording to the manufacturer, the unit uses filters in a standard size (e.g. 10 inches) that other brands also sell – not proprietary cartridges
Yes
Filter change indicatorAccording to the manufacturer, the unit shows the filter status or when a change is due
No
Yes
TDS displayAccording to the manufacturer, displays the water’s TDS value, i.e. the amount of dissolved solids
No
UV sterilizationAccording to the manufacturer, a UV lamp additionally disinfects the water
Yes
Alkaline waterA mineral filter raises the water’s pH according to the manufacturer (alkaline mineralization)
Yes
Yes

Hot water & cooling

Hot waterAccording to the manufacturer, the unit dispenses hot water, e.g. for tea
No
Chilled waterAccording to the manufacturer, the unit chills the water before dispensing
No

Connection & controls

DispensingDispensing point included, according to the manufacturer
Separate faucet
None (countertop unit)
Power connection requiredAccording to the manufacturer, the unit needs a power connection, e.g. for the pump – tankless systems usually have a built-in pump
Yes
Yes
Leak protectionAccording to the manufacturer, a sensor or automatic shut-off valve cuts off the supply in case of a leak – important under the sink
Yes
Min. water pressureMinimum water line pressure according to the manufacturer in bar – below that, a pump is needed
3.1 bar (45 psi)
Tank capacityStorage tank volume according to the manufacturer in liters
12.11 liters (3.2 gal)
0.95 liters (0.25 gal)
Refill tankCapacity of the raw water tank according to the manufacturer in liters – determines how often you refill
5 liters (1.3 gal)
Noise levelPump noise while filtering according to the manufacturer in dB
23.4 dB

Dimensions & weight

WidthWidth of the unit according to the manufacturer in cm
39 cm (15 in)
29.72 cm (12 in)
DepthDepth of the unit according to the manufacturer in cm – matters for the space under the sink
13 cm (5.1 in)
21.08 cm (8.3 in)
HeightHeight of the unit according to the manufacturer in cm
48 cm (19 in)
34.8 cm (14 in)
WeightWeight without water according to the manufacturer in kg
9.1 kg (20 lb)
6.2 kg (14 lb)

General

Warranty
1 years
1 years
In the box
Umkehrosmoseanlage 7-stufig, Vorratstank, Wasserhahn (Messing, gebürstetes Nickel), Installationszubehör
Gerät, C1RFG-Filter, Wassertank, Bedienungsanleitung

Prices

Offers

iSpring RCC7AKUV Umkehrosmose

Waterdrop C1SL

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Verdict

Pros & cons

Die iSpring RCC7AKUV ist eine Untertisch-Osmoseanlage mit 12-l-Tank und Systemzertifikat nach NSF/ANSI 58, die Blei, Fluorid und Nitrat gründlich zurückhält. Sie passt zu Haushalten mit Platz im Spülenschrank, die günstige Standardfilter schätzen und den Einbau selbst angehen. Der Haken: Bei gechlortem Stadtwasser kann die UV-Stufe süßlichen Geruch verursachen, dazu kommen rund 2 l Abwasser je Liter.

Pros

  • Blei, Arsen und Uran im Labor um 100 % gesenkt, Fluorid um 99 %
  • Systemzertifikat nach NSF/ANSI 58 für 97,9 % weniger gelöste Salze
  • Vorfilter in Standardmaß, auch von anderen Herstellern erhältlich
  • Mit rund 2 l Abwasser je Liter sparsam für eine Tankanlage ohne Pumpe
  • Mechanischer Leckageschutz sperrt den Zulauf bei Nässe
  • Ersatzteile vom Kundendienst kommen schnell und oft kostenlos

Cons

  • UV-Stufe verursacht bei gechlortem Stadtwasser teils süßlichen Geruch
  • Mineralfilter gab im Labor Spuren von Arsen und Vanadium ab
  • Undichtigkeiten an Steckverbindern und Winkelstücken kommen wiederholt vor
  • Für den US-Markt gebaut: UV-Vorschaltgerät auf 110 V, Anschlüsse in Zoll
  • Filterwechsel nur mit Schlüssel, ohne Wechselanzeige

Die Waterdrop C1SL ist eine ordentliche Einstiegs-Osmoseanlage für die Arbeitsplatte: ohne Installation, mit Mineralstufe und einer Kartusche, die 12 Monate oder rund 4.160 l hält. Das Wasser schmeckt neutral, Chlorgeruch und Kalk im Wasserkocher verschwinden. Für ein bis zwei Personen passt sie gut. Der Haken: Es gibt nur Raumtemperatur und der Rohwassertank hinten muss ständig heraus.

Pros

  • Läuft ohne Installation, braucht nur Steckdose und 29,7 x 21,1 cm Stellfläche
  • Eine Kartusche hält 12 Monate oder rund 4.160 l
  • Sparsames Verhältnis von 3:1 Reinwasser zu Abwasser
  • Wasser schmeckt neutral, Chlorgeruch verschwindet, Wasserkocher bleibt kalkfrei
  • Werkzeugloser Filterwechsel mit Wechselanzeige
  • Pumpe filtert leise genug für die offene Wohnküche

Cons

  • Rohwassertank sitzt hinten und muss zum Füllen jedes Mal heraus
  • Kein heißes oder gekühltes Wasser, nur Raumtemperatur
  • Nur 0,95 l Reinwasser, ab drei Personen mehrmals täglich nachfüllen
  • Konzentrat fließt zurück in den Rohwassertank, Rest muss ausgeleert werden
  • Kein Systemzertifikat nach NSF/ANSI 58 für die Filterleistung

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