Deck shower in the boat: a complete guide to choosing and installing

A deck shower on a boat is not just a luxury, but a practical solution for a comfortable rest on the water. After swimming in a salt lake, a dusty trip off-road or fishing in the scorching sun, everyone will appreciate the opportunity to quickly rinse right on board. But how to choose a system without overpaying for unnecessary functions? And most importantly, how to install it so that the hull is not leaky and not create problems with balancing?

In this article, we will discuss deck showers From compact hand pumps to full-fledged systems with heating, consider popular including Jabsco, Whale and the Chinese budget, and we will give step-by-step installation instructions And we'll focus on the type of boat that we have, like PVC, aluminum, fiberglass. The hidden problems that the sellers are silent about For example, why cheap pumps fail in season or how to avoid corrosion of pipes in salt water.

1. Why you need a deck shower on a boat: 5 real benefits

Many boat owners consider showers to be superfluous until they have to wash their hands after cutting fish or wash salt off their skin after a sea trip.

• 🧼 Hygiene on board: rinse your hands before eating, wash dirt off your feet after coming ashore, or clean equipment (such as a sonar or spinning) of sand.
• 🐟 Fishing without smell: quickly remove scales and mucus from the hands and decks without soiling the cabin, especially for lovers of predator catching (pike, catfish).
• ☀️ Cooling in the heatA light shower on the face and neck reduces body temperature by 3-5 ° C, which is critical for long transitions under the sun.
• 🚤 Boat wash: wash off the silt after mooring in a stained place or clean the transom from the algae without having to drag the boat to shore.
• 👶 Comfort for childrenChildren are more likely to get dirty and tolerate heat worse, and the opportunity to bathe directly on the water reduces the number of complaints during the hike.

According to a survey of small-sized boat owners (2023), 68% of those who installed a shower reported an 80% increase in comfort.And 22 percent said they couldn't imagine long waterways without it. Only 15% of people shower daily The rest include it as needed, which indicates the reasonableness of the investment.

Types of Deck showers: which one to choose for your boat

All shower systems for boats are divided into three main typesA mistake in choice can lead to a shower being either useless (too low pressure) or creating problems (e.g., draining the battery in an hour).

Hand pumps (mechanical)

The most budget-friendly and self-contained option is a hand-pump shower that pumps water from the off-shore space or a built-in tank. Whale GP0911, Jabsco 18590-1000.

• ✅ Pluses:
  • 💰 Price from 1,500 to 4,000 RUB.
  • 🔋 It doesn't require electricity.
  • 🛠️ Simple installation (it is enough to drill a hole for the intake).
• ❌ Cons:
  • 💪 You have to make physical effort to push.
  • 💧 Water consumption of 2-3 l / min (weak pressure).
  • 🚫 Not suitable for salt water (corrosion of metal parts).

Electrical pumps 12V

A popular choice for boats with onboard network, the pump connects to the battery and provides a stable head. Shurflo 2088-422-144, Rule 25S.

• ✅ Pluses:
  • 🔌 Pressure up to 7-10 l / min (enough for a full shower).
  • 🔄 You can connect to the water or the tank.
  • 🛁 Possibility of installing a heated mixer (e.g. Jabsco Hot Water System).
• ❌ Cons:
  • 🔋 Energy consumption is 5-15 A / h (discharges the battery for 2-3 hours of continuous operation).
  • 💸 Price from 8 000 to 20 000 RUB.
  • 🔧 Requires competent installation (sealing, fuses, relays).

Tanker and heated systems

Premium solution for yachts and large boats, including a storage tank (20-50 liters), a pump and a heating element (12V or 220V). Isotemp Basic 5.

• ✅ Pluses:
  • 🌡️ Hot water (up to 60 C).
  • 🚿 The pressure is like in a home shower (10-15 l / min).
  • 🔄 Automatic temperature maintenance.
• ❌ Cons:
  • 💸 Price from 30 000 to 100 000 RUB.
  • ⚖️ Increase the weight of the boat by 15-30 kg.
  • ⚡ It requires a powerful battery or generator.

⚠️ Attention.If you plan to use a shower in salt water, choose pumps with ceramic or plastic impellers (for example, Jabsco PAR-MaxMetal parts in cheap models corroded in seasons 1-2.

3. How to choose a pump: key parameters

Even if you've decided on a shower type, a mistake in choosing a pump can negate all the benefits.

• 💦 ProductivityFor a comfortable shower, 7-10 l / min is enough. Less - a weak pressure, more - a rapid consumption of water and battery.
• 🔋 Current consumption: The 5 A/h pump will discharge the battery of 60 A·h in 12 hours (excluding other consumers). For long hikes, use a model with a consumption of < 3 A/h.
• 🌊 Maximum water riseIf the tank is located below the pump, check the parameter max. suction height (usually 1-2 m) For off-shore water is important max. (3-5 m).
• 🛠️ Case material: For salt water, only polypropylene or stainless steelCheap plastic becomes brittle in the sun.
• 🔊 Noise levelPumps with diaphragm-machine (for example, Whale SuperSub) are quieter than centrifugal.

An example of calculation: if you plan to use a shower for 20 minutes a day and the pump consumes 10 A/h, then in 5 days of hikes you will spend 100 A·h. This means that the battery for 100 A·h is only enough for a shower (excluding sonar, lighting and motor), the solution is either to take a larger battery or limit the shower time.

Check the boat's passport for the permissible load | Check the compatibility of the pump with salt/fresh water | Calculate the required water supply (min. 5 liters per person per day) | Make sure the battery will withstand the load |Buy spare filters and seals->

4. Installation of deck shower: step-by-step instructions

Shower installation requires care, especially if you're a PVC boat or an aluminum hull, and if you're drilling or sealing, you can leak or corrosion, and here's a universal installation scheme for an electric pump with off-board water intake.

4.1 Tools and materials required

• 🔧 Drill with drills on metal / wood (depending on the body).
• 🔨 Sealer for boats (Sikaflex 291, 3M 5200).
• 🔩 The terminals and wires with a cross section of 1.5-2.5 mm2.
• 🚿 Hose. 1/2" or 3/4" (depending on the pump).
• 🔌 Safety safety at 10-15 A (protection against KZ).
• 🛠️ A set of screwdrivers and wrenches.

Step by step installation

1. Markings: Set the place for shower watering (usually on the transom or on the side) and pump (closer to the battery). Note that hoses should not twist when the boat is moving.
2. Drilling holes:
   • For PVC:use puncher and reinforce the hole flange with sealant.
   • For aluminum-hull: drill at low speeds, treat the edges corrosion-paste.

Red wire → “+” battery (through fuse)
Black wire - "-" battery
Pump entrance → hose from the off-board valve
Pump exit → hose to the watering pot

For boats with hydrofoil or outboard It's important to place the pump so that it doesn't interfere with the control and doesn't get sprayed by the screw, and the optimal place is under the seat or in the nose compartment.

⚠️ Attention.: Never use it silicone sealant PVC boats, it destroys the material. polyurethane or MS polymer compositionsSikaflex, Bostik MS).

5. Connection to the water supply: schemes and nuances

Depending on the water source (overhead, tank, external tap), the connection patterns are different. Let's look at the three most common options.

Off-shore water (direct intake)

The simplest scheme is to pump water directly from under the boat, suitable for freshwater.

• ✅ PlusesNo need to carry the tanks, the water is always fresh.
• ❌ Cons:
  • In salt water, the pump will last 1-2 seasons.
  • The risk of clogging with sand or algae.
  • The temperature of the water depends on the environment.

Scheme.: Filter valves → Filter → Pump → Lake

Water tank (autonomous system)

Perfect for salt water, or if you're often stranded, the tank can be filled from canisters or on the shore.

• ✅ Pluses:
  • Water quality control (you can add an antiseptic).
  • The pump lasts longer (no salts and no sand).
  • You can heat the water.
• ❌ Cons:
  • We need to monitor the water level.
  • Additional weight (1 L = 1 kg).

Scheme.: Buck → Pump → Lake (for heating added) heater between the pump and the watering.

Connection to shore water supply

Relevant for base parking or marina parking, requiring a flexible hose and adapter.

• ✅ Plusesunlimited supply of water, you can connect a washing machine or washing machine.
• ❌ Cons:
  • Dependence on infrastructure.
  • Risk of hydraulic shock (needed) pressure-reducer).

Scheme.: The coastline crane → Hose → Reductor → Lake

6. Maintenance and repair: how to prolong the life of the soul

Even the most reliable system requires maintenance, especially if the boat is operated in harsh conditions (salt water, frequent temperature changes). checklist To maintain the shower working condition:

• 🔧 Pump flushingAfter use in salt water, pass 2-3 liters of fresh water through the system.
• 🧹 Cleaning the filterDisassemble and rinse the rough filter (clogged with algae and sand).
• 🔋 Contact checks: Oxidation terminals are the main cause of electrical pump failure. Litholom-24.
• 💧 Control of leakageCheck the hoses for cracks, especially in the places of bends.
• 🌡️ Winter conservationPour water out of the system, blow the hoses with a compressor, lubricate the rubber seals with silicone lubrication.

If the pump stopped pumping water but it was humming, the engine winding was probably burned, and 80 percent of the time it was because of the dry operation (without water). Do not turn on the pump without water even for a few seconds!

⚠️ Attention.If you are using a shower in salt water, every 3 months disassemble the pump and wash the parts in fresh water with the addition vinegar (1 tbsp. l. per 1 l) - this will dissolve salt deposits.

7. Top 5 Installation Errors and How to Avoid Them

Even experienced boaters make mistakes that lead to leaks, corrosion or rapid wear and tear of equipment, and here are the most common mistakes and ways to prevent them:

1. Ignoring balancing:

   Installing a tank or pump on one side can cause rolling. DecisionPlace the heavy elements in the center or symmetrically (for example, the tank on the left, the battery on the right).

2. Savings on hoses:

   Cheap PVC hoses crack in the sun and burst at sub-zero temperatures. DecisionTake it reinforced hose marked UV-resistant.

3. Absence of a return valve:

   Without it, water will flow out of the hoses, and the pump will work “dry”. Decision: install the valve immediately after the airborne opening.

4. Poor sealing:

   Leaks through the holes lead to flooding of compartments. Decision:use double-sealer and sealing-ring.

5. Wrong choice of pump:

   The fresh water pump in a salty environment will last a maximum season. Decision: check the specifications of the item Saltwater compatible.

FAQ: Frequent questions about deck showers