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Solar shower bag or pump

Updated: 23 October 2026

Solar shower bag or pump is a choice of opposites. One sits in the sun and trickles. The other sprays from a bucket and stays cold unless you warmed that bucket. A screen temperature does not make a pump a heater. Wall mixers are a different purchase, in the [outdoor shower buying guide](/hub/garden-watering/outdoor-shower/sub/outdoor-shower-buying-guide). The listings are on the [outdoor shower comparison](/hub/garden-watering/outdoor-shower). The first evening is [how to set up a portable shower](/hub/garden-watering/outdoor-shower/sub/outdoor-shower-how-to-set-up). Named picks are on [best outdoor shower UK](/hub/garden-watering/outdoor-shower/sub/outdoor-shower-best). Peter F. compared these listings on 21 October 2026. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.

Solar shower bag or pump is a choice of opposites. One sits in the sun and trickles. The other sprays from a bucket and stays cold unless you warmed that bucket. A screen temperature does not make a pump a heater.

Our top picks

Spopal Spopal 6000mAh black

Best overall

Spopal Spopal 6000mAh black
9.4/10about £28.99
View offer
Spopal Spopal 13000mAh 20L bucket

Alternative

Spopal Spopal 13000mAh 20L bucket
8.8/10about £59.99
View offer
RISEPRO RISEPRO 20L solar bag

Best value

RISEPRO RISEPRO 20L solar bag
8.3/10about £8.90
View offer
On this page
  1. 1.What each one actually does
  2. 2.Heat, flow, and time
  3. 3.When the bag, when the pump
  4. 4.What you pay in this set

What each one actually does

The solar bag in this set is the RISEPRO, B01H1UC02C, at £8.90. It holds 20 litres of PVC, weighs 359 g empty, and works by gravity once you hang it. A full bag is about 20 kg, and the flow is a dribble. The pumps are Spopal, MIAOKE, and Zappyway units from £22.64 to £59.99. Drop the housing into fresh water, close the USB-C cover, and switch on only once it is submerged. They move water. They do not heat it. A figure on a screen is a reading, not an element.

Heat, flow, and time

Heat is the bag's only advantage, and it is borrowed from the sky. Camping Sites in Britain uses about three hours of strong sun as a rule of thumb, roughly 35 to 45°C on a bright July day in southern England. That is their rule, not a test of the RISEPRO. Read 45°C where the listing contradicts itself, and test on your wrist. TheFestivals says a 20 litre gravity shower lasts about eight minutes and can scald. Flow is the pump's advantage. On a grey day the pump is only as warm as the bucket. Stay inside the printed ceiling, often around 60°C. Runtime claims of about 80 to 240 minutes are not a timed test.
Spopal Spopal 6000mAh black

Testsieger

Spopal Spopal 6000mAh black
9.4/10about £28.99
View offer

When the bag, when the pump

Choose the bag when the pitch is fixed, the forecast is sunny, and a gentle flow is enough. You spend £8.90 and carry 359 g, and you need a branch that holds the full bag. It is a poor buy in November, in shade, or when mud needs a spray. Choose the pump when the day may be grey and you can warm a bucket. The black Spopal 6000mAh at £28.99 has batteries included. If you do not trust the weather, buy the pump and heat the water yourself. With no kettle and no warm tap, that pump is a cold shower with a better spray.

What you pay in this set

The bag is £8.90, with 4.1 from 3,094 reviews. Mid pumps run from £22.64 to £36.99. The Zappyway pair shares 4.5 from 196, so count that pool once. The black and grey Spopal lines, £28.99 and £27.99, share 4.6 from 2,406. Batteries are included on the black listing only. The £59.99 Spopal, 4.6 from 444, is still a pump with a 20 litre bucket, not a heater. A wall kit in the same folder starts around £88. The bag is the low spend when the sun cooperates. The pump is the spend when you want pressure.

Common questions

Which is warmer on a grey UK day?
Whichever water you heated yourself. The bag only warms in sun, so a grey day leaves it near the temperature you filled. The pump never warms the bucket. If you boil a kettle and mix a bucket, the pump shower is the warmer of the two, inside the printed limit, often about 60°C. With no way to heat water, both stay cold until the sun returns.
Which has the stronger spray?
The pump. It is built to push water out of a bucket. The bag relies on gravity from a short hose, so the stream is gentler and a kink stops it. That stronger spray is why a pump suits a dog or a sandy rinse, though you give up the free heat the bag can take from a clear sky. Neither listing in this set is a mains-pressure house shower.
How long does 20 litres last?
UK guides put a 20 litre gravity bag at roughly 8 to 10 minutes of flowing water, and TheFestivals uses about eight minutes. That is a short shower, enough to rinse, tight if you are washing hair slowly. The figure is from those guides, not a stopwatch on B01H1UC02C. A pump does not have a 20 litre tank unless you bought the £59.99 kit or you filled a 20 litre bucket. When the bucket is empty, the shower is over, however much charge is left.
How long does a charge last?
Pump listings claim about 80 to 240 minutes, depending on the model and the speed. Treat that as a claim on the amazon.co.uk page, not as a test we timed. A single MIAOKE review talks about many uses per charge, which suggests one evening is within reach and does not prove a weekend. Cold weather, a high speed, and a blocked head all shorten it. The bag has no charge to manage, which is the point of buying it.
Which listing is the value pick?
The value pick is the RISEPRO bag at £8.90, 4.1 from 3,094 reviews, if you want the sun to do the heating and you can hang the bag. The best page uses that as the value choice and the black Spopal 6000mAh at £28.99 as the top pick for a spray. If your site is shady, the cheaper bag is false economy, because you have bought a heater that will not switch on.

Related pages

Wall-mounted outdoor shower

Outdoor shower

Best outdoor shower UK: one pump pick and a sun bag

Outdoor shower buying guide: bag, pump or wall kit

How to set up a portable outdoor shower bag or pump

Sources

Public UK sources listed in the research digest. amazon.co.uk prices, stars and review counts are the saved listing lines for these twelve products. Last reviewed 22 October 2026.

  1. Water Supply (Water Fittings) Regulations 1999 (retrieved 22 October 2026)
  2. Water Regs UK, backflow protection for showers (retrieved 22 October 2026)
  3. Water Regs UK, Type HUK1 (retrieved 22 October 2026)
  4. British Stainless Steel Association, stainless steel for external building (retrieved 22 October 2026)
  5. Homebuilding, installing an outdoor shower (retrieved 22 October 2026)
  6. Camping Sites in Britain, portable showers for camping (retrieved 22 October 2026)
  7. Planning Portal, outbuildings (retrieved 22 October 2026)
  8. Consumer Rights Act 2015 (retrieved 22 October 2026)