MARIMEX ProStar 3 Sand Filter Instructions

: June 5, 2024
: MARIMEX

Table of Contents

Sand filter ProStar 3
References
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MARIMEX ProStar 3 Sand Filter

Sand filter ProStar 3

Instruction

You bought a technical device, the handling is easy and simple, but requires the observance of certain precautions. We therefore ask you to read the following instructions carefully!
For the operation of the filter system, you need a skimmer (surface skimmer). Either an integrated skimmer (built into the pool wall) or a suspended skimmer (attachment to the poolwall).

Positioning

The installation area you set between the skimmer and the inlet nozzle so, that there is an adequate safety margin to the pelvic wall. We recommend putting the filter system in addition on base plates (for example: washed concrete slabs etc.). These have to be installed with the spirit level.
Under no circumstances you may put your filter system in a trough or directly into the grass (flood danger or risk of overheating of the filter pump).

If you have sunk your pool partially or completely, so it makes sense to place the filter pump in a filter slot, which should connect directly to the pelvis.
Is your filter pump housed in a filter slot, so it has to be insured, that the filter slot can’t be slooded. For this purpose you should bring in a roller- burnishing (crushed rock) in the range of the filter slot, so that the surrounding- and rainwater can seep away. It would be ideal if there is a direct connection to the drain in the sump of the filter shaft (or sludge pump, with automatic floating switch).
It is important to ensure that the filter slot should never be airtight, because this may cause damage, due to condensation water, on the filter pump. The size of the filter shaft should be selected so that work can be performed on the filter system.

The necessary accessories such as hoses, hose clamps and filter sand (not included) are offered gladly from your pool dealer.

Assembly of the filter system (Illustration 1)

Assemble the filter system at the location where the pump finally will be (the subsequent transport there would be too burdensome!).
The filter pump consists of the following parts:

Pump
valve
Seal (O-Ring)
clamping ring
vessel
Central pipe
Filter screen
Drain plug
Centralizer (cover for standpipe)
Base plate
Pressure hose

6-way valve

FILTER – Downstream water flow from the swimming pool through a filtration vessel and back to the pool
RINSE – Downstream water flow from the swimming pool through a filtration vessel to the waste pipeline or to the drain tank
WASTE – Water flow without filtration led into the waste pipeline or into the drain tank
RECIRCULATE – Water flow from the swimming pool and back without filtration
BACKWASH – Upstream water flow from the swimming pool through a filtration vessel to the waste pipeline or to the drain tank
CLOSED – Closure of all the drainages; water is not circulating
OPEN– without any function; position is used for the filtration shutdown and for a safe winterization

Filter vessel

Insert stand pipe including filter screen into boiler (Figure 2)
Place the stand pipe with the filter screen on the floor of the boiler, make sure that the stand pipe is located in the middle of the boiler and that the drain plug is screwed in.
Now put the centralizer on the tank opening, while centering the standpipe. (Illustration 4)
Fill in the filter quarz sand up to a high of about ¾ of the bowlhight.(right grit 0,6mm – 1,2mm, Quantity: depending on filter size) (Illustration 4)
Then mount the top oft he boiler or the valve head and the boiler seal on the tank top of the filter vessel. Before you do this, it is neccassary to clean again and wash off any sand or accumulated debris. The connection of the top of the boiler or the head valve with the filter vessel is carried out by the clamping ring. The clamping ring is screwed with the clamping ring screw and the collet nut.(Illustration 5 & 6)
Finally, mount the pump fittings on the valve head. Seal the pump fittings sufficiently by using teflon tape. 7. The pressure gauge (if included) is screwed to the side of the 6- way valve and sealed. The existing vent plug should be removed first. Illustration 9

Pump hose connections (Illustration 7)

Skimmers: Connection from skimmer to the front connector of the filter pump.
Pressure line: Connection going from the upper area of the top of the filter pump to the connector with the designation „PUMP“ at the 7-way valve.
Return line: Connection from the 6-way valve with the designation „RETURN“ to the connection at the inlet nozzle (pool). Secure all connections with hose clamps.
Backwash: Connection „WASTE“ (Empty) in the channel. Connections are made with special pool hoses and hose clamps!

Commissioning of the filter system

Before you go in operation with the filter system, it must be insured that the filter system stands outside the basin and in the level lower than the water level of the pool is, and the hose connections are properly connected and secured.
The swimming pool must be filled with water, according to the instructions of your pool dealer. The water must flow towards the filter pump. Now the filter pump is vented. If available, open slightly the preliminary filter of the filter pump until water flows from the prefilter top. (transparent cover with screw connection on the top of the filter pump) For non self-priming pumps, it is neccassary that the water level is above the filter pump.
Place the handle on the 6- way valve to the Backwash position. Only now the filter pump is taken in operation. Backwashing about 2 – 3 minutes to perform. Then turn the filter pump off again and put the handle on the valve head in the RINSE position. Rinsing for 30 seconds. Thereafter, the filter pump is switched off again and the handle set to the position FILTER. The backwashing and rinse water you best pipe in the channel.
Turn the filter pump back on. The filter system is in normal filter operation. We recommend a filter run time of 2 x 4 – 5 hours per day. If you clean the bottom of your pool with a pool vacuum cleaner, this is also done in the position filter. After each floorcleaning or when the pressure on the pressure gauge if available (by 2 – 3 ticks) rises, backwashing is required.
After BACKWASH always a RINSE with a duration of approximately 30 seconds is required. This causes the reduction of the sand in the filter vessel.
If you clean your pool with a pool vacuum cleaner, this can also be done with the 6-way valve in the position WASTE to remove impurities from the pool (eg: algae), which otherwise go back through the filter sand. In doing so, the water which is extracted from the ground, will be directly pumped through the backwash line into the open air. After this process, the water level of the pool is supplemented accordingly.

Filtration systems may not run dry (without water)! The water takes the cooling – in case of dry running there is no warranty replacement!

With every switching of the 6-way valve the filter pump must be turned off!

Filter run time (2 x 4 – 5 hours a day) and the regular back washing (2 – 3 minutes) at least 1 x per week as well as the floor cleaning are the basic requirement for maintained swimming pool water!
Repairs on the pump should only be performed by trained and qualified, professional technicians.

Specifications:

All models:

6-way valve, filter pump TÜV / GS, filter vessel, connection Ø 32/38 mm, base plate

Model	ProStar 3
Flow rate:	3,8 m³/h at 0,4 bar working pressure
Connection:	230 V, max. 200 W
Amount of Sand:	max. 10 kg
Pool size:	max. 19 m³
Filter pump:	with prefilter, not self-priming

Floorcleaning (Illustration 8)

Floor cleaning is done in position FILTER (on the valve). The pool floor vacuum cleaner has to be connected with the pool-floor vacuum cleaner hose directly to the skimmer. Until the pool-floor vacuum cleaner is connected and ready for operation, the filter pump must be switched off.

Important: The pool-floor vacuum cleaner hose must fully be filled with water so that the pump does not filter air, only then the pump can be switched on. Will air get into the filter system, the filter pump is to turn off and the vacuum cleaner must be vented again.

Now move slowly and smoothly (speeding can stir up dirt) with your vacuum cleaning brush on the bottom of the pool.

For filter systems without prefilter a skimmer with a strainer basket is beneficial!

Problem treatment

Cause of Problems	Solution
Sand contaminated with dirt	Backwashing (cleaning of the sand)
Pump sucks air (Bubbles at the inlet)	defective hoses, tighten hose clamps
Skimmer or pump gets too little water	Check water level and increase if

necessary, check the intake for dirt accumulation
Skimmer basket contaminated| Cleaning of the skimmer basket
Prefilter basket of the filter pump contaminated| Cleaning of the prefilter basket

To Winterize the System

At the end of the swimming season, the filter system and the hoses must be removed and emptied.
This is done when the filter vassel as well as the filter pump by opening the drain plug. Open the filter vessel and empty the filter sand. Verify that the filter sand is still in reasonable condition (not glued or clumped) and clean it.

Filter systems located outdoors must be located in a frost-free room in the winter.

Care instructions

Visible contaminants are removed through the filtration system. This is not true for algae, bacteria and other microorganisms, which are also a constant threat to clear, clean and healthy pool water. For their prevention or removal, special water treatment is available, properly and permanently dosed, guarantee for swimmers any kind of harassment and ensure proper hygienic bath water.

Contact information