#Grundfos scala 2 thumping sound upgrade
#Grundfos scala 2 thumping sound mods

Lasted for less than a week, air would get back in, repeat a few times. When it got loud enough, called my guy and he helped purge the system (3 times). Started getting banging in the pipes about a year ago, air would fill in slowly. Professionally serviced (although 2 years on general clean out and oil filter, etc), system makes heat like a champ. 3 level house, 3 zones, oil burner with a blower in the garage on the lowest zone line.ĮK System 2000, 1986. Up here in Alaska, home owner for 6 years, seriously ready for a warm shower.

#Grundfos scala 2 thumping sound mods

Also the tank has a mount on top that fit my pump directly, no mods needed.Hey all, new to the forum here - looking for some ideas on this boiler exorcism project (sure feels that way). It's got a rubber bladder inside that holds pressurised air on one side and water on the other. The unions are rated for the pressure I have on the outlet side.Īs far as the tank price, it was quite a few years ago but I want to say somewhere around 6k-7k baht. I told my wife to just wait till I got back, no problem. He couldn't understand the system or why I used unions he wanted to cut everything out and glue in new pipes. I've never had an issue with the unions except when I was gone and my wife had to get the pump changed by a Thai water/pump guy. I used unions in case something goes wrong with valves or piping, I can easily remove the whole manifold without cutting/gluing pipes. Second pipe moving to the left a bypass around pump system in case pump fails.įourth pipe is suction from unerground tank to pump inletĪs you can see on the opposite side is the pump outlet feeding my system and teeing off to fill the pressure tank. I built a manifold in order to have all options available I can feed my pump directly from moo ban system, fill my underground tank, have pump suck from underground tank, or bypass pump and use pressure from moo ban system-which is not very much but usable in an emergency.įirst pipe right side of mainfold: water in to system which can feed pump directly and/or fill my underground tank depending on what valves are opened/closed.

Would you mind posting a photo of the system? What about a separate stainless bladder pressure tank (10-20 liters) installed between the pump and the house? Would that remove or reduce the water pulsation?Ĭould anyone advise on options for small household with 1000-liter holding tank fed from public supply?

They also have a version with a larger stainless pressure tank in the base, but I think this may be intended for use with a well, not for an external above-ground tank. This one does have a bladder pressure tank, not sure of volume, perhaps 2 liters.

#Grundfos scala 2 thumping sound upgrade

It may be time to upgrade the system, was looking at something like this Hitachi XX series.

When running, pressure is not constant, water stream spurts. I think the red canister at the top is some sort of pressure vessel? About 1 liter.

It makes a loud ticking sound in operation, and recently has started having a thumping noise on the slower cycles at the end of the operating cycle. I assume they installed the cheapest they could find, possibly intended for agricultural use and not household. The pump was installed about 3 years ago just before we bought the house. We have a Polo brand PS130 Auto water pump feeding into the single-story house. Feeds lawn outlets and a 1000-liter tank next to the house. We have two water sources: city government and moo ban systems both connected at the property wall. We've always had fresh, clean water you could drink directly from the tap with plenty of pressure.īut now we're in a small town out side Korat.