Gravity, hand pump or 12 V: the water has to move somehow · review
Traxenta 20 litre PVC solar bag, detachable hose review
A gravity solar bag whose most specific instruction is how to clean it before first use — three hours of sun, black side up, and check the temperature yourself.
The bottom line A plain sun-warmed bag with an unusually careful set of instructions and an unusually empty set of measurements.
What this listing puts on record
A 20 litre black PVC shower bag warmed by sunlight, supplied with a detachable hose, a shower head, a rigid pipe, hooks and cord. The maker states it should be cleaned with warm water and baking soda before first use, laid black side up on level ground in full sun, and used after three hours of heating, with the water temperature checked before showering.
What kind of shower this is
A gravity bag with no power supply of any kind. The listing makes that a selling point for places with no electricity, and everything else follows from it: the bag goes up, the water comes down, and the hanging point carries about 20 kg once it is full.
The one figure it publishes
Three hours. That is the stated heating time in full sun, and it arrives without a temperature. The instruction to check the water yourself before showering is the maker acknowledging exactly that gap.
What the listing omits
No hose length, no weight, no packed size. Five items are listed as supplied and not one of them is measured.
No shut-off, so the flow is controlled by hand or not at all.
Before you hang it
A camp shower is not a water treatment device, and nothing on this listing suggests otherwise. What goes in the bag, and where the water may run afterwards, are questions for the campsite rather than for the equipment.
Availability
Selling between 9 € and 12 € across the German, French, Italian and Spanish Amazon stores when this page was checked.
It also sells on the British Amazon store in the local currency, which the range above does not cover — that range counts euro stores and nothing else.
Nothing came back from the American Amazon store, so the buy link there opens a local search instead of a page that is not there.
Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.
Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.
What it does well, and where it gives way
Strengths
Publishes a heating time — three hours in full sun with the black side up — which most bags in this hub leave out
The accessory set is listed item by item: hose, shower head, rigid pipe, hooks and cord
The maker publishes a cleaning instruction for first use, which is more care than this shelf usually shows
Compromises
A heating time with no temperature attached, so three hours gets you somewhere unspecified
No shut-off anywhere on the set, so the 20 litres runs until the flow is stopped by hand
No hose length, no weight and no packed size, so nothing here can be compared on size
Specifications
Shower type
Gravity solar bag — a black PVC bag hung and warmed by the sun, stated to suit places with no power supply
Capacity
20 litres — stated
Pump power source
No pump — the flow comes from hanging the bag, stated
Stated run time per charge
Not published on the listing — there is no pump and no shower duration; the listing gives a three-hour heating time instead
Hose length
Not published on the listing — a hose, a rigid pipe, hooks and cord are all supplied and none of them is measured
Head type
Shower head on a detachable hose — stated, supplied with a rigid pipe as an alternative
Flow control
Not published on the listing — no tap, trigger or shut-off is described
IP rating
Not published on the listing
Fill opening
Not published on the listing
Packed weight
Not published on the listing — the bag is called light and foldable, with no figure
Amazon reference
B0CY23RYSB (same reference on 5 Amazon marketplaces)
EAN
0753798660689
What people ask before buying
What does three hours of sun get you?
The listing states that the bag can be used after three hours of heating and tells you to check the temperature is suitable before showering. It does not publish a temperature. Two other bags in this hub state 45 °C after three hours, which is the comparison this one leaves you to make for yourself.
Why does the maker mention baking soda?
The listing states the bag should be cleaned with warm water and baking soda before first use. It is a manufacturing residue instruction rather than anything to do with the water you put in later, and it says nothing about what the water in the bag is fit for.
Mains-heated electric shower · 15 litre collapsible tank · 220 V 2000 W heater · 42 °C in 15 minutes stated · warm up to 3 hours stated · 3 or 4 litres per minute · 1.8 m hose
The only shower in this hub that heats its own water — a 15 litre collapsible tank with a 220 V heater, which means mains power or a 2000 W inverter before anything happens.
Best for: A camper van or a caravan with an inverter or a hook-up, where hot water on demand is worth carrying a heater for.
Gravity solar bag · 20 litres · no pump · hand-held head on a flexible hose · carry handle · no hose length, no weight, no ingress rating
A gravity solar bag: fill 20 litres, hang it in the sun and let height do the work — with no hose length, no weight and no shower duration published anywhere.
Best for: A sunny pitch beside the car, rinsing off sand or sweat, where a hanging point is easy to find and simplicity is the point.
Rechargeable pump unit, no tank · 3 or 4 litres per minute · 4800 mAh · IPX7 · shut-off valve on the head · built-in water filter · no run time, no hose length, no weight
A pump rather than a bag, carrying the highest ingress rating in this hub at IPX7 and a shut-off valve on the head — and publishing no run time at all.
Best for: A pitch or a van with a water container on site, where a shut-off on the head and a rating that survives immersion matter more than a published run time.
