Owners of country houses are often used for water supply their own wells and wells. Touch what a pump for them to choose them to work all year round.
Which pump for winter is better?
Submersible pumps are installed directly in wells, train chambers and similar objects. Such pumps are usually reliably protected from exposure to low temperatures and do not require additional insulation (subject to sufficient pump bundle below the level of freezing). Self-priming pumping stations in this respect are more vulnerable, as they are installed above the water level. For year-round operation, they must be installed in a warmed room. The design of pipelines for them should be such that it can always be quickly and efficiently carry out its complete emptying (for example, when an accident or repair).
SB (Grundfos) well pumps for pure water pumping. Well pumps are distinguished by low noise when working, if necessary, you can easily dismantle
Portable Sterwins Garden Pump Provides water supply to a distance of up to 100 m with a height drop of 45 m. Performance up to 3500 l / h
Ready-made heating sections XLauder for outdoor and internal pipe heating (Caleo)
FreeZstop heating sections ("Special systems and technology")
Coupling (seal) Caleo for entering the heating cable inside the pipe
Borehole Headband (Djilex)
Insulation XPS.
Warming materials: extruded polystyrene foam "Hichtf 35 SG"
How to use a pump all year round?
Seasonal systems of autonomous water supply do not need to be protected from freezing. Pumping equipment can be installed in unheated rooms, and pipelines - laid in shallow trenches or open on supports. But do not forget that all summer communications should be emptied before the winter period. Pipelines must be laid with slopes (at least 1%) in the direction of waste reinforcement. Otherwise, local areas with anti-collectors - pockets in which will remain (freeze) liquid after the end of the season will be (freezing).
Do not forget to reliably overlap water before starting the cold season.
The equipment is released from water through the corresponding drainage elements. For example, in surface pumps, a drain plug is used in such an element at the bottom of the housing. Installing equipment should provide easy access to this plug.
Mikhail Terentyev, Head of the Sales Department of Household Equipment "Grundfos":
Among the frequent errors in the arrangement of pumps for water supply can be noted the following: non-compliance with the standards of depth of laying of all-season communications without adopting additional anti-corrosion events. As the latter, for example, insulation or the use of heating cable can be considered; Lack of ventilation indoors (well, caisson) to install the pump and its strapping. As a result, the causing condensate on the surface of the appliances is formed. In the warm season, overlooking electromechanical units is also possible; Users regularly forget to empty communications before starting the winter period.
If the system is in year-round operation, then insulation and water supply is required for all its length. Superficial equipment in this case is installed in ventilated rooms with a positive air temperature (recommended not lower than 5 ° C). It can be underground chambers (caissons, pitfalls), the shaft of the wells, basement of houses. Equipment can be placed in the house, but do not forget that the pump produces noise when working. Therefore, for home, choose a low noise pumps (this parameter is indicated by many manufacturers).
Approximate pump mounting scheme for year-round use
1 - swelling of soil on the outer border of the well; 2 - a pump suspended on the cable; 3 - pipeline opened below the level of primerization of the soil; 4 - Well lid
When choosing a place to install a pump or pumping station, do not forget that the device is protected from low temperatures.
Cable and pit (for mounting pumping equipment or exhaust of wells of wells) are placed so that the equipment is below the level of freezing. Additional embankment of their protruding walls of the soil layer (at least 0.5 m) or finishing underground chambers from inside moisture-resistant thermal insulation (polystyrene foam, polyurethane foam). For concrete rings, many local producers produced a polymer "shell", which closes the concrete ring from the sides and from above; The cost of a ready-made set of insulation for one ring with a height of 50 cm and a diameter of 100 cm will be approximately 3-5 thousand rubles.
An example of simultaneous use of insulation materials and heating cable
The shaft of the wells in which surface or submersible pumps are installed, are insulated from the mouth of the head and up to the ground freezing border (for loyalty, the insulation is 30-50 cm below the freezing mark). The wells of the wells are also warm or independently, or you can purchase a finished product. The cost of the metal cover with a diameter of 100 cm with a polymer insulation is approximately 4-6 thousand rubles.
The main heat loss go through the metal cover of the hatch
If the pipeline is not possible to burst into the ground below the level of the freezing, in particular on the input section into the house, it is complemented by a warming cable and insulate. You should use a cable with a capacity of 10-30 W / m; Special sets for pipe heating are Caleo, WST, DEVI, etc. For installation inside the pipe, special sealed tightening couplings are used.
Option of insulation of concrete rings by polymer sheets
1 - concrete ring; 2 - "tape" made of folded sheets of moisture-resistant polymer material, the thickness of about 50 mm; 3 - Well lid, from the insidelated insulation
The cost of the cable set, depending on the type and length (on average from 1 to 25 m), ranges from 2-3 thousand to 10-15 thousand rubles. Similarly, it should be insulated and the entry of the pipe from the bottom of the trench to the house.
The heating electrical cable is good to use for heating of pipes at the same time complete with insulation, which will protect the pipeline from heat loss
For thermal protection of pipelines, ring heat insulation from high-density foamed synthetic materials is used.
