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Building a house in Trinidad

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pugboy
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Re: Building a house in Trinidad

Postby pugboy » April 29th, 2019, 7:39 pm

any plan to rehabilitate that one as you have workmen on site ?

air wick wrote:
pugboy wrote:Actually that is likely what the long trench is for. You are lucky to have plenty space and looks like easy draining non clay soil.

Is this a new system for the house ?


Yes it’s a new system.

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air wick
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Re: Building a house in Trinidad

Postby air wick » April 29th, 2019, 7:48 pm

pugboy wrote:any plan to rehabilitate that one as you have workmen on site ?

air wick wrote:
pugboy wrote:Actually that is likely what the long trench is for. You are lucky to have plenty space and looks like easy draining non clay soil.

Is this a new system for the house ?


Yes it’s a new system.


The house never had a sewer system. Never lived in it so this is a new and only septic tank system. Doing work to move in.

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Re: Building a house in Trinidad

Postby pugboy » April 29th, 2019, 8:36 pm

Ok, thought there was an old original one

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air wick
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Re: Building a house in Trinidad

Postby air wick » May 4th, 2019, 4:32 pm

Project completed -

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Re: Building a house in Trinidad

Postby pugboy » May 4th, 2019, 5:32 pm

Nice long rubble drain
Any pics of inside soakaway ?

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Re: Building a house in Trinidad

Postby air wick » May 4th, 2019, 5:57 pm

pugboy wrote:Nice long rubble drain
Any pics of inside soakaway ?


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Re: Building a house in Trinidad

Postby pugboy » May 4th, 2019, 7:41 pm

Hopefully the rubble drain won’t be used unless the water table gets high in rainy season

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Re: Building a house in Trinidad

Postby adnj » May 4th, 2019, 8:37 pm

I don't see access covers (about 16"×16" each) for the septic tank.

Single chamber septic tanks can have a flat floor but should have a sloping floor to contain sludge.

The soakaway walls should be highly porous such that vent blocks should have been laid in the walls.

The inlet and outlet pipes should not be connected in either the tank or soakaway.

This looks more like a twin-tank septic system design with the rubble drain acting as a leech field. It would work much, much better with no gravel in the second chamber.

I don't believe that this design would meet current WASA requirements but the inspector always has the final say.

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Re: Building a house in Trinidad

Postby air wick » May 4th, 2019, 8:57 pm

It’s actually a dual chamber septic tank. There is a baffle wall in there.

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Re: Building a house in Trinidad

Postby pugboy » May 4th, 2019, 9:00 pm

What’s the benefit of duAl ?

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Re: Building a house in Trinidad

Postby adnj » May 5th, 2019, 4:45 am

Dual-tank, single-chamber designs give you greater capacity using smaller units to fit on slopes and in tighter areas.

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Re: Building a house in Trinidad

Postby pugboy » May 5th, 2019, 8:20 am

Ok, I guess also first unit would be the one to clean when that time comes

adnj wrote:Dual-tank, single-chamber designs give you greater capacity using smaller units to fit on slopes and in tighter areas.

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Re: Building a house in Trinidad

Postby adnj » May 5th, 2019, 8:46 am

pugboy wrote:Ok, I guess also first unit would be the one to clean when that time comes

adnj wrote:Dual-tank, single-chamber designs give you greater capacity using smaller units to fit on slopes and in tighter areas.
Both tanks will have scum and sludge but the first tank will likely have more. Usually you just empty both if the service truck has the capacity.

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Re: Building a house in Trinidad

Postby pugboy » May 5th, 2019, 9:02 am

But it would be less likely for crud to reach the rubble drain and clog it up presumably

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Re: Building a house in Trinidad

Postby adnj » May 5th, 2019, 11:26 am

In general, yes. All things being equal, a baffled tank or a twin tank will work better at scum sequestration than a single tank with no baffle.

No matter what the design, the best safeguard against a failed septic system is over-capacitization. In my experience, few are willing to shoulder the extra cost but they tend to pay for it in the end (pun intended).

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Re: Building a house in Trinidad

Postby RNR66 » May 7th, 2019, 9:27 pm

Can anyone say if those Radiant shield Barriers used under roof sheeting makes a significant Difference in interior temperature?
My online research so far indicates a 5-10 % decrease for tropical countries. Wondering if that is really worth the $6000 cost and also the durability of this foil based product.

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Re: Building a house in Trinidad

Postby pugboy » May 7th, 2019, 9:45 pm

We had put it when we changed our roof sheeting a long time ago,
Can't say yes or no, but I think it helped slightly.

A well vented ceiling is recommended in general
The best thing they say is to install ceiling exhaust fans to move the hot air out of the ceiling.

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Re: Building a house in Trinidad

Postby adnj » May 8th, 2019, 7:20 am

RNR66 wrote:Can anyone say if those Radiant shield Barriers used under roof sheeting makes a significant Difference in interior temperature?
My online research so far indicates a 5-10 % decrease for tropical countries. Wondering if that is really worth the $6000 cost and also the durability of this foil based product.
I have seen differences in under-ceiling temperatures of a few °C for similar structures in close proximity but that kind of comparison is meaningless because there are so many variables.

That 5% to 10% reduction is energy cost savings. For a residential A/C electrical bill of $300 to $1000 each month, you may save $15 to $100 each month. Your payback would be as long as 33 years or as short as 5 years.

Because Trinidad enjoys some of the cheapest electricity on the planet, the payback is long. If the $/kWh goes up, the payback gets shorter.

Personally, I would not install a new roof without a radiant barrier.

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Re: Building a house in Trinidad

Postby pugboy » May 8th, 2019, 7:56 am

in other countries the thick type fiber insulation is preferred,
I have never seen that utilized for homes locally, probably much more expensive

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Re: Building a house in Trinidad

Postby adnj » May 8th, 2019, 11:10 am

pugboy wrote:in other countries the thick type fiber insulation is preferred,
I have never seen that utilized for homes locally, probably much more expensive
Fiberglass insulation is used to prevent heat loss in temperate and cold climates. It is typically used locally in cold rooms and refrigerated walk-ins. It isn't super expensive but it is no fun to install it because of the high risk of skin and lung irritation.

Fiberglass does not assist in preventing radiant heat gain either. In fact, it tends to warm and trap in the heat. The reasoning behind the common local practice of "putting thermal wrap" on a car battery is puzzling to me for that same reason.

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Re: Building a house in Trinidad

Postby rspann » May 8th, 2019, 7:53 pm

Best septic tank/soakaway. :D
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Re: Building a house in Trinidad

Postby rspann » May 8th, 2019, 7:59 pm

I don't know if it showing properly, but its the concrete line that goes to wasa's sewer system. No problems ever

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Re: Building a house in Trinidad

Postby pugboy » May 8th, 2019, 9:05 pm

Nah the best soakaway is a overflow to the box drain

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telfer
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Re: Building a house in Trinidad

Postby telfer » May 17th, 2019, 8:49 pm

Guys ....need some advice........ I’m presently doing some renovations and the builder is saying that the ‘old’ wall where the ‘New’ walls meet need to be mudded using gypsum compound to give the wall a smooth finish/look ......another person was saying that I should use a concrete repair type mud which should be the correct one??

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Re: Building a house in Trinidad

Postby adnj » May 17th, 2019, 9:13 pm

Gypsum mud or drywall joint compound offers little to no structural integrity. If both walls are clay or concrete block, the walls would typically be cleated together then the new block would be plastered with concrete mud. It is the concrete plaster applied to the surface of clay block that makes the wall durable.

If the existing wall was concrete plastered, there is no need to add additional concrete to the wall.

It is not unusual to add an additional skim coat of drywall joint compound for a smoother finish.
Last edited by adnj on May 17th, 2019, 9:13 pm, edited 1 time in total.

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telfer
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Re: Building a house in Trinidad

Postby telfer » May 17th, 2019, 9:16 pm

I’m not implying that the joint compound be used to plaster the wall.......all the walls are plastered but there are plenty imperfections due to the masons not doing a perfect job

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Re: Building a house in Trinidad

Postby telfer » May 17th, 2019, 9:17 pm

I need to know if the drywall compound will flake later down or is there something else that can be used????

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Re: Building a house in Trinidad

Postby Duane 3NE 2NR » May 17th, 2019, 9:47 pm

^ no it shouldn't

Lots of people "mud" their concrete walls to give it a super smooth look. Makes the paint look even better!

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Re: Building a house in Trinidad

Postby adnj » May 17th, 2019, 10:00 pm

If the old wall was previously painted, the quality of the gypsum mud skim will depend entirely on how well your contractor does his work. I've seen good and not good. If the wall gets exposed to moisture, the results will not be good.

Personally, if the existing wall is concrete, poorly plastered and then painted, I would not attempt to smooth it out at all. I would cover it with plycem or even gypsum board or just leave it as-is.
Last edited by adnj on May 17th, 2019, 10:00 pm, edited 1 time in total.

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telfer
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Re: Building a house in Trinidad

Postby telfer » May 17th, 2019, 10:03 pm

The walls were only primed so far

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