query
Query languages, data query languages or database query languages (DQLs) are computer languages used to make queries in databases and information systems.
A well known example is the Structured Query Language (SQL).
View More On Wikipedia.org
A well known example is the Structured Query Language (SQL).
View More On Wikipedia.org
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honeywell ST9400c controller Timer query
Hi I recently got this programmer installed during my new boiler (Worchester) installation. I am still getting use to it, however my query is I have very odd programmed times currently set. My 3rd timer slot is set 12pm-2.50am, yes we have our boiler heat the radiators while we go to bed and...- Raff
- Thread
- controller honeywell query timer
- Replies: 4
- Forum: Central Heating Forum
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J
Shower trap query, drains smell
Hi, I have recently bought a house where there is a constant drains smell in the downstairs wet room. I suspect that the trap is not sealing but I can't find how to seal this particular trap. I wonder if there is something missing that would seal it. The trap and drains are clear. Any help would...- Jtommomo
- Thread
- drains query shower smell trap waste trap
- Replies: 2
- Forum: Bathrooms, Showers and Wetrooms
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polyplumb Pb pzp Thermostat unlock query
I have a polyplumb Pb pzp thermostat. Having changed the batteries the thermostat is now locked. I’ve followed instructions but it won’t unlock. Advice please- Peter H
- Thread
- polyplumb query thermostat
- Replies: 0
- Forum: Central Heating Forum
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D
Condensing Oil boiler from boundary query
Hi all I have to site a condensing oil boiler close to a boundary. Its going to be one of these Greenstar 50/70 or there abouts. The 600mm rule doesnt look like it applies, I think is 2.5 metres from the boundary as its condensing. 1) What should my distance from the boundary be? 2) Does this...- Donkey Table
- Thread
- boiler boundary condensing oil oil boiler query
- Replies: 2
- Forum: Oil and Solid Fuel Forum
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Gas Pipe Renewal (Lead)-Inlet Entry & Meter Location query
Hi folks, I'm a bit concerned with what the Gas Transporter is proposing regarding a replacement pipe install to the properties in the close I live on. The demographic is predominantly elderly, but it seems to be the contractors have gone a bit kamikaze & seem obsessed with finishing early...- Frayed Bentos
- Thread
- america entry gas gas pipe location meter pipe query renewal usa
- Replies: 3
- Forum: USA
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Evohome Query
Hi I would appreciate a reply from someone who has an Evohome system fitted please. When the system is near its set point (but not over it yet) then the Evohome appears to restrict the HR92 on the radiator down and call for heat from the boiler (default on time of 1 minute in every 10). Now 1...- colin_
- Thread
- evohome query
- Replies: 5
- Forum: Central Heating Forum
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Automatic bypass query
Hi I have an automatic bypass valve (ABV) fitted on my system but I am having some issues understanding how it does its job when the TRVs are restricted by the Evohome control system Lets say it is set at 0.4 and the TRVs are nearly closed (say they are 0.35), when the boiler fires I presume... -
B
Boiler service query
Morning everyone, I have a Vokera gas combi boiler which will be 2 years old this month and had it serviced last year. The engineer was great he took 8 minutes to service it as it was only a year old last year. My question is do gas combi boilers need to be serviced every year and what does a... -
C
Zone valve query
Hi I have 3 zone valves, one per floor. I am having an Evohome system fitted so that I can get better control over the room temperatures. The exisiting zone valves will no longer be required and so it would make sense for them to be removed and replaced by pipe. The main issue is that a...- colin_
- Thread
- america forum plumbing query usa valve zone zone valve
- Replies: 4
- Forum: Plumbing Zone
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J
Retro-fitting balanced cold on an unvented - query
Hi all, fairly new to G3 work as recently certified (!). Done a couple of installs from scratch, all good. Job here is to retro-fit a balanced cold circuit from a Gledhill unvented to a recently refurbed bathroom that now has all mixers (apart obviously the toilet). Cylinder has Reliance... -
B
Bath tap and panel replacement query
Morning everyone, I want to replace the bathtub waterfall type tap please see picture, my question is I have no access panel as the bathtub is sealed, would the bath panel need to be cut open or are their any other alternatives? Also any bath tap recommendations as my flat doesn't suit... -
Pipework size query for wetroom shower tray
Hi I'm laying the pipework in for a wetroom showertay The trap is outlet 50 mm so was thinking of running it all in 50 mm so does this sound ok , any problems with syphonage or anything else for that matter 2 mtrs Straight , drops down through soffit , turns left ( swept bend )1.5 mtrs into...- Stants
- Thread
- pipework query shower shower tray size tray wetroom
- Replies: 0
- Forum: Central Heating Forum
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Single taps and hotel water query
Hi everyone, I would like to know if the basin in the bathroom has single taps and the hot tap always delivers warm water (not scorching hot) regardless of how high the DHW is set at what would be the reason for that? Also do hotels and gyms have the hot water set at a specific setting if so... -
S
Bathroom mixer/shower diverter query
Hi, I am looking for some advice regarding the diverter on my bathroom taps. Please see attached picture. The diverter lever is very stiff and difficult to move, so I want to remove it but I have never serviced these types pf taps before so am not certain what is inside. So, my first question... -
B
Pipework under sink and bathroom basin with pics query
Hi everyone, I took pictures to better illustrate my questions and hope it helps. The hot water pipe under the sink (top pipe) has a valve on it with the number 15 on it and the cold pipe (under top pipe) has a stopcock which stops the water coming into the kitchen sink. Does the cold pipe... -
M
Exposed pipes - a query
Hello all I have recently purchased a property and now starting to slice up the various jobs into DIY vs get a professional in. Given the likely disruption, one of the early tasks I want to address is the exposed central heating pipework that effectively does a full loop around the first...- Mjward
- Thread
- exposed pipes query
- Replies: 24
- Forum: Central Heating Forum
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Shower head query
Hi everyone, I have a thermostatic pressure shower in my bathroom and a found flow reducing valves similar to the link provided. I would like to know what is the purpose of these and if I should pop one in the shower head as I opened the shower head and nothing was in it, the flow... -
B
Drinking water filter query
Hi everyone, I would like your advice on what type of water filter to buy to fit under my kitchen sink. I have been thinking about getting a drinking water filter fitted onto the cold water feed under the sink as my flat. Also I have copper pipes under the sink which have the number 15mm on... -
W
Glow worm Ultracom 30 cxi query
Hi all Homeowner with little understanding of boilers... Heating is working fine and hot water is working fine from the bathroom basin taps. Pressure is at 1.6. The issue is that from the bathroom bath taps and kitchen taps (which appear to be higher pressure), hot water runs for a bit but...
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