Teledyne Laars EG-250 heater and old in-ground Jacuzzi Brand hot tub. Flow through the jets is low. Can't locate the reason. Not the filter. It was working fine then started hearing thumping and v

SOURCE: low water flow from gaggia

I have now solved this problem. The lack of flow associated with the pump working but running quietly is caused by the Group Head being blocked with limescale. Normal descaling cannot remove it because it cannot penetrate the Group Head.
Removing the Group Bell can be achieved using a collection of screws (see photo) and works no matter how stubborn the thing: levering it with a screwdriver in my case was impossible as it was so well glued on.
I figure that the advice to replace the rubber seal once per year is a good one because it forces you to remove the Group Bell and clean it out.

SOURCE: Vaillant Ecotec combi boiler -

David,

The fact that you're getting a little burst of domestic hot water suggests that the boiler is capable of circulating hot primary loop water through the heat exchanger, but doesn't necessarily do so when it needs to.

What seems to be lacking is a recognition that domestic hot water is now being drawn off, and that the boiler needs to fire up and divert the primary flow through the heat exchanger.

A good place to start might be the flow switch (usually in the bottom of the boiler, where the cold water supply comes in) or the electrical connections to it.

A.

SOURCE: low pressure and flow on hot water side of single handle faucet

It could be one of two problems, one simple, one serious.

• Easy fix
  

1. Turn off hot water angle stop under sink to faucet.
2. Remove supply line from hot angle stop.
3. Place end of supply line in a small bucket to catch some water.
4. Turn on cold water for a couple of seconds and backflush debris from faucet.
5. Reconnect supply line.
6. Turn on angle stop and test
   

• Complex fix

If you have steel pipes you may be experiencing reduced flow due to corrosion in your pipes. Reduced hot water pressure in the kitchen faucet is usually the first sign since this is the faucet that is most used in the home.

Repiping is a job for a professional. Another symptom you may need a repipe is orange colored or rusty water.

SOURCE: Leaking pipe in a jacuzzi hot tub

The only product I know of which will do what you ask is an item called Plast-Aid Acrylic and PVC repair kit. Google it and you will find the website. It is about $20. and it works like a charm. good luck

SOURCE: Kenmore Series 70 washing machine whines and low flow on cold H2O

Yeah you need to replace the water valve. To get to it you need to remove the cabinet on the newer direct drive models, If yours has a rear access panel then you simply pop the top to get to the valve after removing the hoses. Fairly simple job. Here is a good website for direct drive coupling replacement . It shows you how to open the cabinet. http://repair2000.com/coupling.html
GVI 151 is the generic part that fix all belt drive models. Direct drive will need its own little water valve buy hay it ain't but 20 bucks.
For a better explanation post you model number in the comment box and I will research it further for you amigo.


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