Sewer Drainage pipe size calculation

How many people are housed in this facility?

I am not a sewage, wastewater, or plumbing expert, but some of these numbers seem to be out of proportion. What is an "ablution tap" compared to a wash basin or a shower? There may well be a ceremonial or halal reason for this, but I am not familiar with the proper considerations.

The overall flow in this system will depend on whether you are using various types of water-conserving fixtures such as low-flow shower heads or low-flush toilets/ commodes/ water closets. It will also depend on the usage profile. For instance, if 200 guys come off shift and try to use these things all at once, there may be a sizable peak load; but this may be compensated by relatively idle periods. Thus you must consider both peak loads and time periods, as well as average loads over longer time periods.

In the U.S., the UPC (Uniform Plumbing Code) would govern in many locales, but other codes sometimes rule in other locales; in which case you need to follow the local requirements.

Thanks for reply with in a short period as i need the answer quickly,earlier i mention that this is labour camp and it houses 192 rooms and each room will serve for 10 people that means total of 1920 labours in each building which has common tiolets for showers,wash basins ,water closets etc. and it gives suitable area for each person for bed table and cubboard.this type of building is in gulf country.Hope u will give a suitable suggestion by calculation and practical wise.waiting for u reply.Once again thankyou.

As I mentioned, I am not an expert on this, but I can try to look up some of the information that would apply. Your questions are good ones. Thank you especially for clarifying how many residents will occupy this facility.

Sorry, but you need to know what you are doing to answer the question. As you are asking the question, this means you don't know what you are doing.

So the real answer is that you employ an engineer who does know how to calculate these things based on:

- local codes (they have a weighted average generally for each type of usage and the number of people likely to use it at any one time depending on the function)

- reasonable statistical data that can be used to justify deviation from the code where absolutely required

- future needs for the area based on the local govenment area plan (or site plan in the case of a simple site set-up which is not your case as you have a very large number of people)

- existing sewage outlets (rainwater / waste water / mixed sewer) these will govern how you manage the outflows e.g. do you have a storage tank for peak flows which is then pumped at a reasonable speed to the sewer?

Quite alot of questions that need expert analysis.

Thanks for your suggestion/comments,i m a mechanical engineer by profession,my question is very clear that for example a six inch pipe how much loading unit can take under peak conditions.As per my calculation i m getting say roughly 3000 loading units for that i m getting a pipe size of 150mm (6" inch) following from Table C2 page 84 PLUMBING ENGINEERING SERVICES DESIGN GUIDE from UK ,in gulf country for plumbing servcvices we are following uk design guide lines.but i have a doubt that when 1920 labours do a shit is that work smoothly if i put 150mm pipe to the main line or shall i increase the pipe size to avoid overflow.There is no storage tank for drainage waste it will direct go to the municipalty sewerge line.

YOUR ANSWER IS CORRECT BASED ON THE INTERNATIONAL PLUMBING CODE AND SEVERAL OTHERS. THE SIZING IS BASED ON THE TOTAL NUMBER OF FIXTURE UNITS, WATER CONSUMPTION, NOT TOTAL NUMBER OF FIXURES OR OCCUPANCY WHICH IN YOU CASE SEEMS EXTRORDINARILY HIGH. I AM NOT SURE WHAT THE TERM LABOUR CAMP IMPLIES BUT IN JAILS AND DORMITORIES FOR OTHER PURPOSES IN THE us, THE CODE ASSUMES 20 PEOPLE PER 1000 SQ FT. BASED ON OUR CODES YOU FIXTURE UNIT TOTAL PUTS YOU AT 6" FOR A SEWER LATERAL. pRIOR TO A STRUCTURE(MANHOLE) WE REQUIRE CLEAN-OUTS AT 50' INTERVALS BY IPC AND 70' IN A FEW OF THE OTHER CODES. BELIEVE IT OR NOT, TOO LARGE CAN BE WORSE THAN TOO SMALL. THE FLUID SHOULD NOT MOVE TOO FAST AND LEAVE THE SOLIDS BEHIND. YOU ONLY HAVE 10 OR 11 PSI AT THE BOTTON OF THE STACK SO KEEP YOU HORIZONTAL PITCH TO MINIMUM, 1/4" PER FOOT ( SOORY I CAN'T FUNCTION IN METRIC) AND IF YOU HAVE A BIG DROP USE A STRUCTURE OR A 45' SECTION AND MAITAIN YOU 2-21/2 % PITCH ON THE REST OF THE RUN.