Reporting results

By Blue Planet Network Posted on Mon 10 Aug 2009, almost 17 years ago

Dear WOTR friends,

This proposal is very sound and the quality of your work has been reflected in the international recognition received.

We would appreciate if you would use the opportunity to put status reports on PWX of your projects long-term. As your teams visit completed projects, you can easily upload a report with status, interviews, and photos. It will help us support you better.

Thanks!

General queries

By Gram Vikas Posted on Wed 29 Jul 2009, almost 17 years ago

This looks like a nice project, but I have a couple of questions / clarifications:
1. How far is the tank from the village-is it in the centre? I am also unclear how water is accessed from the tank- is there one tap on it, which everybody uses?

2. You mention electricity unreliability being a constraint. What are your plans to ensure a reliable water supply?

3. How will the electricity bills be covered? Will this come out of the maintenance fund?

4. Can you confirm the number of households? The application says 1176, but after adding up your population breakdown, this number appears to be the total population?

General queries

By Watershed Organization Trust Posted on Sat 01 Aug 2009, almost 17 years ago

Thank you Mr. Joe for your queries regarding the Mohadi drinking water project. The explanation to your queries is as under.

1. There is existing overhead tank of 75 litres capacity at the centre of the village the water storage tank is constructed at a height of 20 ft. from the ground level. The drinking water was distributed through 18 standposts located at different places in the village. Therefore there is no need to construct any new stand post. However, the repairs of the existing standpost will be done by the water committee.
2. The duly requirement of water for the village community is approx. 53000 lits per day. As per the technical design the electric pump of 7.5 hp is proposed. The discharge of water from this pump would be 38 to 40 thousand lits per hour so that 2.5 to 3 hrs would be required to fill up the existing tank of 75 litres capacity. At present, we have 8 to 12 hrs electric load shedding in rural areas. During the night hours the electric city is available in the villages. Considering the time of 3 hours required to fill the tank everyday the water tank would be filled up and the next day morning the water will be released for distribution once in a day.
3. Regarding the water tax, we have worked out the revenue generation model for Mohoda project village which works out to Rs. 38,618/- per year including the recurring expenses and 20% provision for reserved fund. It is planned that to collect Rs. 20 /- from each family towards the water tax preferably on quarterly basis. The responsibility of collection of water tax would be of water committee with the support of grampanchayat since the water committee is the legal sub committee of grampanchayat act as per Bombay Grampanchat Act article 49 (1).
4. The total population is 1176 and the total of the breakup is also 1176.

Hope this will satisfy your queries. If you have any more queries, please feel free to question us.

General queries

By Agua Para la Vida (APLV) Posted on Sat 01 Aug 2009, almost 17 years ago

This is Gilles Corcos of APLV.
I notice that your PVC pipes for your conduction line is rated as 6kgs/square cm.
That's about 60 meters of water or corresponds to about SDR 40.5 rating. While that may be nominally enough for the water pressure you'll encounter this is usually seen as drainage pipe and is pretty fragile. We have systematically eliminated this type of pipe from our systems and consider it unsuitable for this type of use. There are lots of scenarios that result in their being damaged.

General queries

By Watershed Organization Trust Posted on Mon 03 Aug 2009, almost 17 years ago

Thank you for your suggestion.

We would like to clarify that considering the Indian conditions and availability of PVC pipes, it is recommended to use the PVC pipes for drinking water projects. The schemes for drinking water projects under Govt of India, all State government, World Bank aided projects, DFID funded as well as German funded (KfW) projects use the same pipes.

As per the technical specifications of BIS (Bureau of Indian Standards) PVC is widely used material and has good flexibility, a smooth surface and non-toxic qualities. As PVC is inert, some grades are used in food and chemical processing. The PVC pipes are used for underground pipelines more than 1 meter depth and is covered with soil. These pipes used for drinking water does not have any contact with any other agent like sunlight, air etc. The PVC pipes are used for the pumping main pipeline for less than 10 kg pressure. These pipes are tested for 1.5 times pressure i.e. this pipe can satisfactory work even if the pressure increases on the rising main up to 90 meters as per Indian standard specifications.

Do inform if you require any other information.

best regards,
Thomas

General queries

By Blue Planet Network Posted on Sat 08 Aug 2009, almost 17 years ago

Which pipes are you now using?

In my experience 6kg pressure pipes are hard to get even in Bangalore. 8 are not available, 10 require advance order. Most people use 4 or 6.

We clearly need to understand the various ratings better.

I assume HDPE is generally better though more expensive. Do you have it available in rolls in Nicaragua? Is it possible to get those to your sites?

General queries

By Watershed Organization Trust Posted on Tue 11 Aug 2009, almost 17 years ago

Regarding the views of PVC pipes for the drinking water projects -

We are using 6 kg pressure PVC pipes for the rising main pipeline and 4 kg pressure PVC pipes for the distribution system. Generally, for the distribution system, 2.5 kg pressure pipes can be used but in all our projects we prefer using PVC pipes measuring 4 kgs pressure. Since 4 and 6 kg pressure pipes are being used on large scale for the drinking water projects, agricultural lift irrigation pipelines, sprinklers, etc. Therefore these pipes are readily available in rural areas in our region.

The 8 kg pressure pipes are not usually used in our region. Therefore these pipes are not even manufactured. The 10 kg pipes are sometimes available or have to place an order to the dealer for supply. The PVC pipelines are more easy for joining 2 pipes or for replacement, repair etc. by unskilled person.

The HDPE pipes are comparatively expensive than those of the PVC pipes (costing 73 pounds extra for 100 m). Though the HDPE pipes are better than the PVC pipes, but HDPE pipes have some merits and demerits also. Generally the HDPE pipes are being used in the salty or saline water (creek, sea, cove etc) or marshy saline area for transportation of the drinking water. It has another benefit that there is no need of level bed below the pipes and need not to be straightened. There are some demerits such as the rats or crabs, a rodent animals gnawing specially HDPE pipes and make holes or break the pipes. Secondly these pipes are available in a bundle of 100 ft. length only. For the fittings of these pipes requires special heating for the joints which is a skilled job. Generally there is a less demand for these pipes. Hence, they are available in cities or require to place an order.