Storage fiberglass septic tanks: principle of operation and characteristics

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Accumulative fiberglass

It is far from always pos­si­ble to con­nect a pri­vate house to the cen­tral sew­er net­works, and you don’t want to give up a com­fort­able bath­room even while stay­ing in the coun­try. There­fore, more and more often, the own­ers of coun­try hous­es are equip­ping a local sewage sys­tem on their site.

For small build­ings with non-per­ma­nent res­i­dence, a stor­age type sep­tic tank is ide­al. It can be made from var­i­ous mate­ri­als. A prac­ti­cal option is a fiber­glass con­tain­er for a sep­tic tank.

The device and principle of operation of storage sewage

A sep­tic tank is a reser­voir of a suf­fi­cient­ly large vol­ume. Inside there is only one cham­ber in which waste­water is not processed, but only accu­mu­lat­ed. In one of the walls of the tank there is a hole for the inlet pipeline. On top there is a neck with a hatch for inspec­tion and main­te­nance.

The tank is usu­al­ly buried. The pres­ence of the con­tain­er is only giv­en out by the ser­vice hatch, through which the sewage machine peri­od­i­cal­ly pumps out the accu­mu­lat­ed sewage.

Also an impor­tant ele­ment is the ven­ti­la­tion ris­er, which is a plas­tic pipe that ris­es 70 cm above the ground. From above, it must be pro­tect­ed from pre­cip­i­ta­tion and debris enter­ing the con­tain­er.

The device of fiberglass drives

For ease of main­te­nance, a lev­el sen­sor can be built into the stor­age tank, which will tell you when it is time to pump out sewage.

Tra­di­tion­al­ly, a sep­tic tank was made of con­crete rings. For the con­struc­tion of such a struc­ture, it is required to call lift­ing equip­ment, and the tight­ness is often lost dur­ing oper­a­tion.

A plas­tic sep­tic tank turned out to be a more prac­ti­cal option. At the same time, you can make it your­self from impro­vised mate­ri­als, for exam­ple, eurocubes, or buy a fin­ished struc­ture. An exam­ple of a pop­u­lar fin­ished device is the Chis­tok stor­age sep­tic tank.

Anoth­er good option is a fiber­glass con­tain­er.

Advantages and disadvantages of storage fiberglass tanks

Stor­age tanks made of fiber­glass, have a whole list of pos­i­tive char­ac­ter­is­ticsrelat­ing to both the method of dis­pos­al and the mate­r­i­al itself.

  1. Stor­age type sew­er sep­tic tanks are the eas­i­est and cheap­est option for arrang­ing the drainage of a small pri­vate house.
  2. Accu­mu­la­tors do not require the work of bac­te­riaso if nec­es­sary, you can install the tank on the sur­face, which will sig­nif­i­cant­ly reduce the cost of instal­la­tion.
  3. Such local sew­er­age is insen­si­tive to vol­ley emis­sions, as it has large vol­umes.
  4. This type of waste dis­pos­al does not depend on geo­log­i­cal con­di­tions: ground­wa­ter height and soil water absorp­tion capac­i­ty.
  5. Fiber­glass does not cor­rode and is resis­tant to even aggres­sive com­pounds, which is impor­tant for sewage, and also tol­er­ates soil pres­sure well. All these prop­er­ties deter­mine the long ser­vice life of such tanks, which reach­es 50 years.
  6. This mate­r­i­al also tol­er­ates low tem­per­a­tures well.. The con­tain­er can be installed even on the sur­face of the earth. In this case, it is bet­ter to pur­chase a ver­ti­cal stor­age sep­tic tank, which will take up less space on the site.
  7. Tanks are sealedwhich excludes con­t­a­m­i­na­tion of the soil with sewage.
  8. Prod­ucts are light­weight, so they are easy to install your­self.



Pros and cons of fiberglass septic tanksBut fiber­glass dri­ves have a num­ber of short­com­ingswhich must be tak­en into account when choos­ing this option.

  1. Fiber­glass is a brit­tle mate­r­i­althere­fore, care must be tak­en dur­ing instal­la­tion and trans­porta­tion.
  2. Fiber­glass prod­ucts are more expen­sive than plas­tic coun­ter­parts.
  3. Dri­ves take up a lot of space, as they have large vol­umes.
  4. The light­ness of the mate­r­i­al can cause the tank to be forced to the sur­face by ris­ing ground­wa­ter, so anchor­ing is required upon instal­la­tion.
  5. For ser­vice it is nec­es­sary to call a sew­er truckso this option is not suit­able for large hous­es.

How­ev­er, for a sum­mer res­i­dence, such a sew­er is a suit­able option. And in order to reduce pump­ing costs, you need to cor­rect­ly deter­mine the required vol­ume.

How to make a sew­er stor­age tank from eurocubes with your own hands? Detailed step by step instruc­tions.

Read in this arti­cle how to inde­pen­dent­ly equip a reli­able drainage sys­tem around the house.

How to calculate volume?

When deter­min­ing the size of the waste­water col­lec­tion tank, 2 para­me­ters must be tak­en into account.

  1. Dai­ly water con­sump­tion depends on the num­ber of res­i­dents. It is gen­er­al­ly accept­ed that one per­son con­sumes 0.2 m³ of water per day. Mul­ti­ply­ing this val­ue by the num­ber of res­i­dents, you can under­stand how many drains are gen­er­at­ed in the house per day. The stor­age tank must con­tain waste­water in 10–14 days. Longer stor­age may lead to sed­i­ment com­paction.
  2. For the stor­age sys­tem, it is also impor­tant to take into account the capac­i­ty of the tank of the sewage truck. This para­me­ter aver­ages 4–8 m³. You should not install a very small capac­i­ty, because you will have to pay not for the pumped out vol­ume, but for call­ing the car.

The last para­me­ter should be clar­i­fied with the orga­ni­za­tion that will emp­ty the sew­er con­tain­er.

Based on the cal­cu­la­tions, you can pur­chase a con­tain­er and pre­pare every­thing you need for instal­la­tion.

Necessary tools and materials

In addi­tion to the con­tain­er pre­pare for instal­la­tion:Installation of a storage septic tank made of fiberglass

  1. shov­el for dig­ging a pit and a trench, if you plan to do it your­self with­out the involve­ment of spe­cial equip­ment;
  2. cement and sand to pre­pare the base for the tank;
  3. sand for back­fill­ing the con­tain­er and prepar­ing the base for the pipeline;

  4. steel hinges
    that will need to be installed at the base;
  5. slings for fas­ten­ing sep­tic tank;
  6. plas­tic pipe with a diam­e­ter of 110 mm for the ven­ti­la­tion ris­er and sup­ply pipeline and fit­tings for it;
  7. spir­it lev­el for tank lev­el­ing and obser­vance of the angle of the inclined sew­er line;
  8. a device for cut­ting pipes and prepar­ing holes in the walls of a sep­tic tank;
  9. sealant for pro­cess­ing pipe joints.

After that, you can pro­ceed with the instal­la­tion.

Installing fiberglass drives: instructions

Instal­la­tion of a fiber­glass dri­ve is sim­ple and con­sists of sev­er­al steps.Scheme of installation of fiberglass drive

  1. When choos­ing a place, take into account the pos­si­bil­i­ty of a sew­er truck access. In addi­tion, it is desir­able that there are no trees and shrubs in 3 m, and build­ings with a foun­da­tion in 5 m. Ele­va­tion is also not suit­able, since most sew­er sys­tems oper­ate by grav­i­ty.
  2. After that, earth­works begin, which con­sist in dig­ging a pit for a sep­tic tank and a ditch for the sup­ply pipeline.

    The con­tain­er and pipe must be laid below the freez­ing point of the soil.

  3. A sand base 10 cm thick is poured into the trench. The sand is care­ful­ly lev­eled and rammed, check­ing com­pli­ance with a slope of 2 cm per lin­ear meter.
  4. Pre­pare a hole for the inlet pipe and ven­ti­la­tion. Install the ven­ti­la­tion stack.
  5. Lay pipes, con­trol­ling the slope, and low­er the sep­tic tank into the pit. The con­tain­er must be installed strict­ly hor­i­zon­tal­ly.
  6. Secure the tank to the con­crete base with cables.
  7. Con­nect the pipeline.
  8. Back­filled first with sand, then with soil.

The device is ready for use.

A lit­tle about the instal­la­tion of a fiber­glass sep­tic tank, see the video:

Service

The sim­plic­i­ty of the dri­ve is man­i­fest­ed not only in the device, but also in oper­a­tion and main­te­nance, which con­sists in the time­ly pump­ing of waste­water. It is impor­tant to remove sewage removed at least every 2 weeks to avoid hard­en­ing of the sed­i­ment.

Peri­od­i­cal­ly, the walls of an emp­ty sep­tic tank must be washed with water.

To reduce odor and thin the sed­i­ment, it is also rec­om­mend­ed to add spe­cial bio­log­i­cal prod­ucts to the con­tain­er.

Operating rules

A fiber­glass sep­tic tank accu­mu­la­tive for a sum­mer res­i­dence is unde­mand­ing to oper­a­tion. He does not need spe­cial cli­mat­ic con­di­tions.

The main thing is that the water inside does not freeze. Fiber­glass is resis­tant to aggres­sive envi­ron­ments, so there are no restric­tions in this regard.

Issue price

A com­mon rea­son for not buy­ing a fiber­glass stor­age sep­tic tank is the price. So, a capac­i­ty of 5 m³ costs about 50–700 $ with­out tak­ing into account addi­tion­al mate­ri­als, and when order­ing an instal­la­tion, many com­pa­nies ask to pur­chase pipelines and fit­tings for them, as well as cement and sand:

  • a pipe with a diam­e­ter of 110 mm, which will be need­ed to equip the sew­er line and ven­ti­la­tion, costs about 160 rubles per lin­ear meter;
  • for 1 cu. m of sand and 50 kg of cement will have to pay an aver­age of 600 and 3 dol­lars, respec­tive­ly.

Cost of installing a fiberglass septic tankThe price for mount­ing the dri­ve is deter­mined by direct con­tact with the com­pa­ny pro­vid­ing ser­vices. But instal­la­tion and con­nec­tion usu­al­ly cost at least 150$.

Doing it your­self will save you mon­ey.

In any case, with care­ful instal­la­tion, you can get a sim­ple but reli­able stor­age waste dis­pos­al sys­tem, which is per­fect for a small cot­tage.


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