About 10 years ago i built a pvc nozzle and thought it should work pretty good, it was a complete failure. After that i did Extensive research on the internet on how to make a suction nozzle back then there wasn't a lot of information anywhere. I did actually come across a mathematical equation on a way to determine your jet size. A big long equation and every time I used it it would always come back to 1/4 the size of your suction tube.

Thanks Iowa Panner

Thanks me too.

If you have a basic minimum pump then that quarter rule is going to apply to you. If you have a pump that is a monster you can increase at quarter inch rule by a little bit. But that quarter inch rule is your basic baseline.

Jeff wanted to bring the mat to Michigan but I think it might be a little overkill because it's the commercial size mat. I sold my other dredge to Beefy Prepper and I wanted another small dredge to run in some locations here. and I was all out of material to post for a video and this is something that I've been wanting to do for a while I had another complete how to build your own dredge nozzle on GPEX.com that used to be a Canadian forum that is no longer around.

Yeah you might be a converted DVR fan also I don't know I think the con's are going to be greater

Well it'll be dual purpose, used for the raptor flare and the 2 1/2 inch dredge.

Great job, now go find that gold👍⛏⛏⛏😎

Good day,,,, i try my nozzle it work but my sluice box and my mat canot find fine gold ,,10 by 48 inch is my sluice ,,, hope you canhelp me

Can i connect 3" nozzle to 2" water pump

Sorry I haven't gotten back to you let me think about your questions and I'll let you know KZfaq doesn't tell me when additional Responses come in on a post.

To run a 3 inch Suction and Nozzle you are going to need a minimum of 8000 gallons per hour, now let me convert that to a metric in case you're not in the states, I believe that's going to be 30.28 33 m³ per hour

There's a lot of great videos out there on PVC nozzles and the nice thing about that is when the parts wear out it's easy to replace them and it's cheap.

Я не думаю, что ваш перевод с вашего родного языка на английский был не совсем правильным. Я зашел на ваш канал, кажется, я знаю, на каком языке вы говорите, и я переведу это на ваш язык, так что, надеюсь, мы поймем друг друга. Вы спросили меня, что делать, если вам нужно изменить размер струи, и вы также спросили, какой расход и psi вам нужны. Мне нужно было бы знать, какого размера сопло вы хотите, не зная, что я не могу сказать вам, какой поток вам нужен. Чем больше сопло, тем больше поток. Теперь, что касается размера вашей струи, вы берете диаметр всасывающей насадки и делите ее на четыре, что дает вам базовый размер струи для этой всасывающей насадки.

Теперь я также могу дать вам разные размеры для разных требований к расходу, но вы должны понимать, что я нахожусь в Соединенных Штатах, и мы используем нашу собственную систему измерения, мы не используем метрическую систему, вам придется преобразовать все, что я вам даю, в метрическую систему.

Скажите мне, насколько большой вы хотите сделать всасывающую насадку, и я посмотрю, что я могу сделать, чтобы преобразовать ее из американского стандарта в метрическую систему.

Joe if I was set up with a garage I would probably build one for you. But since I don't have a garage I can't do that too easy, and I don't have the time to do so. These videos that I made should show you how to make your own. if you don't want to save money and make your own you could probably buy a 4 inch dredged nozzle either on eBay, keene engineering, Or pro lines website.

I've been super busy and I'm so sorry I'll work on it here the next couple of days and try to get it out as soon as possible.

Wednesday at 6 PM central time

@@IowaGoldProspectors thanks look forward to watching it

Mason city area?

Mid central here, But I travel all over

I was up there a couple weeks ago and I kind of bombed, it's hard to go so far away in one day and research an area when you don't live up there.

@@IowaGoldProspectors go over your osage but rt now it's flooded

@@IowaGoldProspectors marshall town area is not to bad east of marshall town off hwy 30past Legrand going down a big hill I think at the next town turn to on gravel at bottom of hill and there is a old river bed of the iowa I used to duck hunt there

Are you looking to build a 15 inch Suction Nozzle or are you meaning 15 cm? There's a big difference in size clarify that for me would you and I'll get back with you

Since I sent you a respond a while back and you haven't responded to my response. I'll give you an answer to your question can you make a 15 inch Suction Nozzle yes you can but it's gonna be really freaking heavy. Your jet reduction needs to be three and three-quarter to 4 inches. You're gonna need a healthy incoming water line to go to the front of your suction nozzle. Now since you said you're from Zimbabwe I thought maybe you got inches mixed up with centimeters if that's the case that's about the size of a 6 inch suction nozzle. That's a little bit more doable you won't need a crane to move it around. You need to have at least a 2 inch line if not bigger with a reduction of an inch and a half.

Se você estiver usando um bico de polegada e meia (1 1/2"), seu tamanho mínimo de jato precisa ser três oitos, mas se você tiver uma bomba grande o suficiente, poderá aumentar como 7/16 ou meia polegada. Você pode ir um pouco maior se sua bomba for grande o suficiente e um cavalo de sete deve ser grande o suficiente para subir até meia polegada e terá mais poder de sucção.

@@IowaGoldProspectors A entrada da bomba minha é 2.1/2" e a saída é 2" porém pelo que entendi , posso entrar com 2" e treinando a redução em 1/2" ou menos . O motor é centrífuga e na lenta imagino que funcionará bem com um y fino deste que quero fazer. Imagino apenas ... Mas você que o professor nesta área . Quero fazer alguns y, pois tenho mangueiras de 1.1/2" ........,,,,de 2".........,, e de 2.1/2" e outra de 3" esta de 3" é muito dura e muito ruim de usar pesada ruim de enrolar , ruim pra fazer curva na água para sugar o cascalho. Se tiver o nome de uma mangueira de 3" flexível leve , fico feliz se puder me indicar , pois aqui no Brasil não estou encontrando do meu agrado . Obrigado por ter me respondido tão rápido . O que eu puder ajudar daqui do Brasil , dentro do possível , será meu grande prazer .

Eu tenho uma bomba do mesmo tamanho e executo uma draga de 4 polegadas com ela. Seres que você tem uma bomba que é 2 1/2 dentro e duas fora. Eu acho que você poderia executar um jato de 3/4 "(0,75) em seu bocal de sucção. E funcionaria muito bem, com o motor em marcha lenta. Essa é uma bomba grande para uma draga de 1 1/2 polegada.

Acontece que eu estava em casa relaxando, quando sua mensagem chegou ao meu telefone. Quando eu estava procurando informações sobre como fazer meu próprio bico de sucção há pouco mais de 10 anos, não havia ninguém a quem eu pudesse perguntar. Muitas pessoas compram suas próprias coisas e poucas pessoas com conhecimento fazem suas próprias coisas. E não consegui entrar em contato com ninguém para fazer perguntas. Então, depois que fiz meu primeiro bico e funcionou bem, postei como fazer na Internet há 10 anos. E esse formulário não está mais na Internet. É por isso que coloquei esses vídeos no meu canal do KZfaq.

E se o Google não tivesse um tradutor que pudesse traduzir seu idioma para o meu, não estaríamos conversando.

Well, two things one I’ll have to go back and listen to this video and two I could get that pump out and do a pressure test.

@@IowaGoldProspectors I realised you said dahlke after so I was a bit quick. But what would you say I could run with 300 gph and 65 psi, could I run a 5" you think? And damn fast response on a 2 year old video =D

I would’ve gave you a damn fast response on your second question also but I was out today running a high banker.

Give me a couple minutes I have a PDF file I pulled off the Internet probably eight or 10 years ago. I don’t know who wrote it but the guy had a listing of minimum gallon per hour and PSI of pumps and what you could run nozzle size. Let me see if I have that on my phone. Otherwise I might have to start up my older laptop and take a look on there.

All right, I fired up my laptop. And rather shocked that the second folder I opened up was the folder I was looking for. This is a PDF file I think I found in 2014. I copied it to my desktop and put it in a thumb drive, and a few other places just so I wouldn’t lose it or delete it someday in the future. Now this guy wrote out this PDF file for Dredge pumps for different size jet logs. Now I believe suction nozzles are more efficient somebody reading this will probably tell me that that’s not true. It’s just research that I found over the years and I’ve heard it said many times. So under the 5 inch Dredge size. There are three different psi options. At 40 psi you need 194 gallons coming from the pump. At 50 psi you need 217 gallons coming from the pump. And at 60 psi You need 238 gallons coming from the pump. Now if you wanted to run a 5 inch nozzle, your jet needs to be at least an inch and a quarter minimum I would set my pump up on some kind of a tank that you can recirculate the water. On the output side of the pump have a T fitting on the top side of the T fitting screw in a psi gauge, and on the output side of the T fitting have a reducer or a multitude of reducers, have one at least an inch and a quarter inside diameter. What this will tell you is while running your pump, It will tell you what your psi at certain idle levels will be. You know pumps give you two different ratings. They tell you what your maximum gallon per hour is and what your maximum head or psi will be. You’re not gonna have both at the same time. When you run your pump full throttle you’re gonna get your maximum gallon per hour out of the pump if there’s no reductions you’re not gonna get 65 psi out of the pump at 300 gallons. Maybe you already realize this, maybe you don’t. So according to my paperwork that I have on my laptop, your pump should run a 5 inch set up, but before I go out and get everything lined up, I’m going to put a reduction on that pump minimum of an inch and a quarter and see what my psi rating is. Now I just scrolled up and looked at your question to me and noticed you put down 300 gallons per hour. You meant per minute correct? Because if you’re only getting 300 gallons per hour out, you are not running any kind of nozzle hopefully you meant 300 gallons per minute . All the numbers that I typed out further up on this response as gallons per minute.